15 Signs of Obsession (& How It’s Different From Love)

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Relationship coach Marlena Tillhon highlights the differences between love and obsession

Co-authored by Marlena Tillhon and Samantha Fulton, BA

Last Updated: April 2, 2026 Fact Checked

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• Signs of Obsession
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• Real Love vs. Obsession
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• What is limerence?
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• FAQs
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• Video

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Romantic obsession can be intense, and sometimes unhealthy or dangerous. But what are the actual signs that it’s happening? This guide will walk you through the key signs that someone is obsessed with you, with exclusive insights from relationship coaches and licensed professional counselors. We’ll also explain limerence (a common form of romantic obsession) and how to tell the difference between love and obsession.

How do you tell if someone is secretly obsessed with you?

Relationship coach Marlena Tillhon says that obsession is characterized by having unrealistic expectations in relationships. If someone is obsessed with you, they will often idealize you and their connection with you, whether it’s real or perceived. Other major signs of obsession include:

• Being overly jealous
• Ignoring your boundaries
• Demanding constant contact
• Monitoring your online activity
• Trying to manipulate or control you

Steps

Section 1 of 4:

15 Signs Someone Is Obsessed with You

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   They place you on a pedestal. Someone who is obsessed with you will think you can do no wrong and over-idealize you. Love and relationship coach Nicole Moore says that a key factor in obsession “is a high degree of feelings for someone else without a lot of information about who they actually are."

   Meet the wikiHow Experts

   Marlena Tillhon is a relationship coach and psychotherapist based in the UK, with over 12 years of experience.

   Nicole Moore is a love and relationship coach and the founder and CEO of Love Works Method. She has over a decade of experience.

   Tara Vossenkemper, PhD, LPC, is a licensed professional counselor and the founder and managing director of The Counseling Hub, LLC. She has over 12 years of experience.
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   They’re overly curious about you. If they’re obsessed, they will want to know everything about you and may ask intrusive questions that aren’t warranted for the amount of time you’ve known each other. If they’re trying to get too personal, too fast, they might be obsessed.
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   They exhibit jealous behaviors. Someone who’s obsessed will not want you to spend time with anyone except for them. They may pry if they see you talking to someone else, or they might try to monopolize your time so you’re unable to engage with other people.

   • Licensed professional counselor Tara Vossenkemper, PhD, LPC, says that someone who’s jealous all the time for no reason—no matter how much you convince them or show them what’s on your phone—is a red flag!
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   They’re monitoring your online activity. If someone is obsessed with you, they will want to check up on you to know what you’re doing, when, and with whom. They might always be the first to view your Instagram stories or the first to like/comment on a post.

   • If you’re in a relationship, your partner might try to control your phone or social media usage, notes Vossenkemper.
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   They ignore your boundaries. Obsession can lead someone to disregard boundaries in order to get what they want. They might overstep after you ask for space, or continue to contact you after you tell them you’re too busy to talk.

   • Looking for additional support? Read our guide on how to set boundaries while dating.
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   They’re not engaging in other activities. Someone who’s obsessed with you will be reluctant to spend time on anything else. They may stop participating in their hobbies or stop making time to see their friends because they’d rather spend time with you.
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   They’re moving too fast. If they’re obsessed, they won’t want to waste any time and may try to keep an alarmingly fast pace. They might expect you to invest more of your time in them or expect commitment before it makes sense for the connection.
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   They demand constant contact. Obsession can make someone always want to be around you or have constant access to you. This could look like constantly asking to see you, texting and calling too much, or getting upset if they’re unable to reach you.
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   They express anxiety about you and the relationship. Someone who is obsessed will feel unsteady in the connection and may require constant reassurance. When you’re not close by, they might ask about what you’re doing, who you’re with, who you’re talking to, or if you’re cheating on them, notes Tillhon.
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    They over-analyze your behavior. If someone is obsessed with you, they will read into everything you say and do. They may assume that something you said meant more than it actually did, or they might assume something you did was specifically about them.
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    They sacrifice their own needs. Obsession can lead someone to place you above everything else. They might start prioritizing you over everything else, or fixating on ways to impress you or keep you from leaving.

    • According to Tillhon, fear may drive their obsessive behavior. She says they may constantly think about how to get closer to you, how to make you want them, and how to make you choose them.
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    They’re lovebombing. Being obsessed often leads to excessive displays of affection to try and keep your attention or to force a sense of intimacy. Lovebombing can include over-the-top flattery, early declarations of love, or giving gifts.
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    They pay too much attention or remember too much. Someone who is obsessed will remember tiny details that the average person probably wouldn’t. If they know or remember things that you barely remember mentioning, or that you didn’t mention, they are likely obsessed.
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    They might exhibit controlling or manipulative behaviors. If someone is obsessed with you, they will want to dictate what you do, who you see, and how you spend your time. They may “lovingly” spend all of their time with you, isolate you from your friends, or try to convince you that everybody around you is lying to you, notes Vossenkemper.
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    They feel threatened by your independence. Obsession can make someone want to be the center of your universe, and the idea of your autonomy might make them feel insecure. They may express wanting you to rely on them or express anger about your ability to function independently of them.
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Section 2 of 4:

What’s the difference between real love and obsession?

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   Love is mutual affection; obsession comes from wanting to fill a void. Tillhon shares that “with love, we don't enter a relationship or try to be with someone from a place of desperation and need, like with obsession.”

   • Tillhon goes on to say, “We enter that relationship wanting to be with the other person or spend our life or time with them because we like who they are…They're not there to fill a void, so that kind of love is more free and light and giving and reciprocal.”
   • Example: Someone who is obsessed might be in a relationship because they feel unworthy and believe their partner will make them feel more lovable.
     • On the other hand, someone who is actually in love will be in the relationship because they feel their partner complements the happiness and fulfillment they have already achieved.
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   Obsession is often based on an unrealistic expectation or fantasy. Unlike real love, obsession is rooted in codependent expectations. Tillhon explains, “We are more obsessed with what we think a relationship can give to us. A lot of the time, this is based on expectations that another person can complete you. It's having the expectation that a person or a relationship can provide something for you that you have to figure out how to provide for yourself.”

   • Example: Someone who is obsessed will continue chasing a fantasy and idealizing their relationship, which can place pressure on their partner.
     • In a relationship built on love, both partners are aware that the other has flaws, and they are willing to work through issues together.
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   Real love means caring about someone’s happiness, independent of you. Moore says that, with obsession, “you want the other person to be happy only if it means they’re with you and doing what you want. With real love, you want the other person to be happy no matter what, even if it’s not with you."

   • Example: Someone experiencing obsessive love will not be satisfied until the person they are fixated on is in a relationship with them.
     • Someone experiencing real love will want what is best for the other person, even if it means they can’t be together.
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Section 3 of 4:

What is limerence?

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1. 
   Limerence is an intense romantic fixation on another person. If someone is exhibiting the above signs of romantic obsession, it is highly possible they are in limerence. Limerence is similar to addiction and is more intense than a regular crush. It can last for months or years and often stems from unrequited or unresolved feelings. The 3 stages of limerence are infatuation, crystallization, and deterioration:

   • Infatuation: Someone develops a connection that feels like love at first sight. This leads to excessive fantasies about the person they’ve connected with and feelings of euphoria when they have an interaction.
   • Crystallization: Their infatuation peaks and they may start adjusting their behavior and routines based on their fixation. This can sometimes lead to the neglect of their own needs.
   • Deterioration: Finally, if feelings are not reciprocal, disappointment sets in and the attachment begins to deteriorate. This may lead to feelings of anger, resentment, or depression.

Section 4 of 4:

Frequently Asked Questions about Obsession and Limerence

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1. 1
   How long does obsession last? Obsession can last months or even years, depending on the circumstances. Limerence in particular lasts longer when affection is not reciprocated, or if there is a question of reciprocity. The feeling of anxiety and uncertainty tends to draw out romantic obsession.
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   How can you turn obsession into a healthy relationship? Assuming feelings are reciprocal, romantic obsession can be managed with clear communication, boundaries, and time management. Communicating boundaries and needs will help set a standard of what is and is not acceptable in the relationship. Intentionally setting aside time for friends and family/time away from the romantic connection can also help to prevent feelings of isolation and codependency.
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   When does obsession become unhealthy? Obsession is unhealthy if it is impeding on the everyday functions and routines of you or your partner, or if it is leading to isolation from you or your partner’s support network. In a healthy connection, both people should be able to function independently of the other, and you shouldn’t feel like you’re making excessive sacrifices for the sake of the relationship.

   • When is obsession dangerous? If you are the object of someone’s obsession and they are engaging in stalking behaviors or forceful control of you, your social life, and/or your activities, the obsession has reached a dangerous level. If you feel your safety is at risk, please cease contact and notify the appropriate authorities.
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   What causes romantic obsession? Romantic obsession or limerence can happen to anybody, but it tends to be more likely in people with insecure attachment styles, preexisting mental health disorders, and/or previous relationship trauma.

   • ADHD, OCD, and BPD can all heighten anxiety about relationships, making obsession more likely.
   • Cultural norms and excessive social media use can also contribute to obsessive tendencies, particularly if someone adopts extreme idealizations of romantic love.
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