Is it normal to be jealous of an ex?
Yes, jealousy involving an ex is common, whether you’re thinking about your own ex or your partner’s. The feeling doesn’t automatically mean you want someone back or that anything is wrong with your relationship.
An ex can stir up comparison, insecurity, unfinished feelings, or plain old curiosity about how someone has moved on. You might feel jealous even if you don’t want to get back together—that’s not exactly the heart’s tidiest filing system.
What matters more is what you do with the feeling. Notice what seems to trigger it, and if it’s about your partner’s ex, talk about the specific reassurance or boundary you need rather than treating jealousy as proof that someone’s done something wrong. If it’s taking over your day or pushing you toward snooping or controlling behavior, that’s a cue to work through what’s underneath it.