There’s a common experience when you start dating someone new and have “the talk” about previous relationships. Maybe later you look up their ex on Instagram and scroll a little. You take in the old homecoming photos, beach vacations, the anniversary captions from years before you were in the picture. Maybe you feel a small pang – a flicker of comparison or curiosity – and then you move on. But for some people, that fleeting discomfort doesn’t fade. It lingers, loops and starts to feel less like curiosity and more like a threat. That emotional experience can quickly cross into more extreme territory: retroactive jealousy. Below, relationship experts break down what retroactive jealousy really is, what it might reveal about you and how to keep it from undermining your relationship in the present. What is retroactive jealousy? “Retroactive jealousy is when someone experiences strong feelings of anxiety and jealousy around their partner’s past romantic history or even experiences that happened before you existed in their life,” said Priya Tahim , a licensed professional counsellor. “It’s not curiosity but what feels like an active threat in your present relationship.” People experiencing retroactive jealousy become strongly fixated on their significant other’s previous relationships and any romantic encounters that occurred before they even met. “In relationships, this often shows up as obsessing over a partner’s exes or past hookups, replaying details you wish you never heard or feeling way more upset than the situation calls for when the past comes up,” said Julie Nguyen , a dating coach with the dating app Hily. “You might ask a lot of questions, compare yourself to people you’ve never met, scroll through old photos or feel a rush of anxiety when a name or memory gets mentioned.” Retroactive jealousy can lead you to focus on how your attractiveness, career success and other attributes compare to their ex’s. “In relationships, it often manifests as intrusive thoughts, where you are constantly making mental comparisons to idealised past partners, or repeated questioning about exes and the perceived ways in which they are ‘better,’” said clinical psychologist Sabrina Romanoff . She added that you might replay imagined scenarios or feel emotionally dysregulated when learning about trips your partner took with their ex or certain milestones they reached. “Retroactive jealousy can manifest as repeatedly seeking details, spiraling after reminders, stalking exes online or needing reassurance that never quite sticks,” Tahim added. What experiencing retroactive jealousy might say about you – and your relationship “Most of the time, retroactive jealousy has less to do with your partner’s past and more to do with what’s coming up inside you,” Nguyen said. “It’s common in people with anxiety or an anxious attachment style, especially if there’s an underlying fear of not being enough.” Even in a relationship that is otherwise solid, someone experiencing retroactive jealousy might have a nervous system that’s on high alert, scanning for any sign that they could be left or replaced. “Most people don’t love thinking about their partner’s romantic or sexual history,” said Sarah Barukh , a therapist with Kindman & Co. “For some, that discomfort taps into a deeper question of whether or not they are ‘enough’ for their partner. With retroactive jealousy, that question can get really loud and start to sound like, ‘Does my partner actually want me, or am I just the person they ended up with? Would they choose someone else if circumstances were different?’” Retroactive jealousy tends to reflect underlying insecurities, fear of uncertainty, trust issues, an inferiority complex and/or a lack of self-confidence. There might even have been a past betrayal, such as cheating. Retroactive jealousy typically says more about the person feeling it than about their present relationship or partner. “Although most problems in relationships are co-constructed, retroactive jealousy is often rooted in problems in early attachment and deep-rooted fears of abandonment and co-dependency,” Romanoff said. “It’s often less about their partner making them feel insecure, and more about their difficulty with ever feeling ‘chosen’ enough so they can feel safe.” So retroactive jealousy typically doesn’t say much about the quality of your relationship, though it can certainly affect it. “People with retroactive jealousy may also struggle with relationship OCD, as they attempt to soothe the lack of inner safety through external fixation – which unfortunately can only truly be resolved from within,” Romanoff said. How can it affect your current relationship? “Retroactive jealousy can show up as a constant need for reassurance, lack of trust and create emotional unsafe spaces within yourself or the relationship,” Tahim said. “If unaddressed, it can strain relationships by creating resentment by letting the past take up space where the present should be.” Taking focus away from the current relationship can lead to anxiety and emotional distance. Compounded over time, retroactive jealousy takes a toll on relationships. “Partners may start to feel frustrated, interrogated or punished for a past they can’t change,” Nguyen said. “Trust can slowly erode, not because of betrayal, but because the past keeps getting pulled into the present.” A little jealousy is understandable, but retroactive jealousy can feel all-consuming, pushing people away. “The partner on the receiving end may feel frustrated or helpless, especially if they are loyal and committed but feel like nothing they say fully reassures the other person,” Barukh said. Even the most patient partner can become inflamed or worn down by the strain of unceasing irritability and assurance-seeking. That’s why it’s crucial for the person feeling retroactive jealousy to address it. “Without the introspection and accountability of understanding how they’re contributing to the turmoil, their romantic relationships often end,” Romanoff said. There are ways to work through retroactive jealousy without letting it ruin your relationship “Everyone has a past, and you don’t have to be completely healed before entering a relationship – but self-awareness and a willingness to address what’s underneath the jealousy matter,” Tahim said. “By focusing on the root fears, limiting comparison, grounding yourself in the present and choosing growth, you can work through retroactive jealousy without letting it define the relationship. It’s not an easy hurdle to climb, but it’s not impossible.” Awareness and acceptance are crucial in this process. “The most important insight is to understand you can be feeling high levels of anxiety and distress, and also know your distress doesn’t mean your partner committed an infraction against you,” Romanoff noted. “Your emotions are valid and need to be addressed, but the way you are acting on them, as if they are fact, is hurting you and your ability to have healthy relationships.” The goal is to cut off the cycle of gathering more information and seeking reassurance, which soothes anxiety in the short term but is unhealthy in the long run. “The first step is being honest about it, with yourself and with your partner,” Nguyen said. “It’s about letting them know this is something you’re struggling with so the fears don’t continue to dominate the relationship. It’s also important to understand that digging for more details rarely helps. No amount of information or reassurance can make the past feel safer.” Instead, focus on finding a sense of emotional safety in the present. “This could mean actively practicing self-soothing skills when you’re feeling particularly activated – for example, grounding exercises, breathing exercises, getting regular physical activity and going for more walks,” Romanoff said. You can develop a mindfulness practice to help you stay grounded in moments when harmful thoughts start to spiral. “In some cases, discomfort about a partner’s past can be connected to things that haven’t been fully talked about or resolved,” Barukh said. “Sometimes a partner hasn’t shared much about their past because it feels awkward or vulnerable. In other cases, there may be unresolved feelings that haven’t been addressed. Those situations do deserve honest conversations.” In addition to talking to your partner, consider working with a therapist to unpack the underlying fears and issues driving your retroactive jealousy. “It can be really important to gently turn the focus inward and ask why it feels so hard to accept that someone you respect, or love, sees you as worthy of being with them,” Barukh said. “People who struggle with retroactive jealousy are often pretty hard on themselves. Self-compassion really matters here, and it helps to remember that a lot of people experience some version of this. Related... Not Estranged, But Not Truly Close: The Rise Of Low Contact Family Relationships Too Many Couples Believe These 'Myths' About Healthy Relationships A Money Judgement Could Make Or Break Couples, Study Finds