Is it normal to think about past relationships while in a relationship?
Yes, it’s normal to think about past relationships sometimes, even when you’re happy with your current partner. A memory popping up doesn’t automatically mean you miss your ex or want to go back.
Past relationships are part of your history, so a song, place, or random memory can bring one to mind. Sometimes you’re simply remembering; other times you may be comparing experiences or noticing what you’ve learned about what you want.
People vary in how often this happens, and the thought itself isn’t a verdict on your current relationship. If you’re constantly longing for an ex or using the past to avoid dealing with problems now, it may be worth asking yourself what those thoughts are pointing to—but you don’t need to panic over the occasional mental rerun.