How to Stop Thinking About Your Ex So Much

Why “just stop thinking about them” backfires

Actively trying to suppress a thought keeps it activated rather than letting it fade — you end up monitoring for the thought in order to avoid it, which means you're thinking about it constantly in order not to think about it.

What actually reduces the frequency

Reducing exposure to triggers (see our guide on social media after a breakup) does more than willpower alone. Giving the thought somewhere to go — writing it down instead of turning it over silently — tends to shorten how long it lingers each time it shows up.

The frequency naturally decreases with time and consistency, not through effort to suppress it. Lally et al.'s (2010) roughly 66-day timeline for new patterns to feel automatic applies here too — this is a pattern that fades with consistent non-reinforcement, not with force.

Why trying to stop thinking about them doesn't work

Thought suppression — actively trying not to think about something — is one of the more reliably counterproductive psychological strategies. The research on this goes back to Daniel Wegner's 1987 'white bear' experiments: when people are instructed not to think about something, they think about it more, not less.

The mechanism: suppression requires monitoring for the thought (to suppress it), and the monitoring process itself keeps activating the thing you're trying not to think about. The more effort you put into not thinking about your ex, the more mental resources are dedicated to the thought of them.

The alternative isn't to dwell on them deliberately — it's to change your relationship with the thoughts rather than fighting them directly.

What actually reduces intrusive thoughts about an ex

Reducing inputs is the highest-leverage move: no checking their social media, no asking about them from mutual friends, no listening to music you associate with them, no revisiting old texts. Every input refreshes the mental image and reactivates the craving loop. Cutting inputs is the closest thing to turning down the volume.

Redirected attention, not suppressed attention: when the thought appears, the useful move is not to fight it but to gently shift attention to whatever you're doing. Not 'stop thinking about them' but 'I notice I'm thinking about them; what was I working on.' This works with the mind's natural attention patterns rather than against them.

Time structure helps more than willpower: unscheduled, unstructured time is where rumination thrives. Being genuinely busy — with things that require attention — naturally crowds out the space for looping thoughts. This doesn't mean constant busyness as avoidance; it means enough structure to give the mind somewhere other than the ex to land.

When the thoughts won't slow down despite doing the right things

Intrusive thoughts that remain intense despite reduced inputs and structural support are sometimes a sign of unprocessed emotion rather than unresolved attachment. The thoughts are staying because the grief underneath them hasn't had a channel yet.

Journaling about the specific thought — not about them generally, but about the specific thought that keeps arising — often reveals what the underlying emotion actually is. 'I keep thinking about the time we did X' usually turns out to be about a specific feeling (loss, regret, longing for something specific) that the generic category of 'missing them' obscures.

If intrusive thoughts remain disruptive weeks into active no contact and genuine structural support, talking to a therapist is a reasonable next step — not because something is wrong, but because some processing is harder to do without a structured guide.

Common questions