Is it normal to think about having an affair?
Yes, thoughts about having an affair can happen, even when you love your partner or have no intention of acting on them. A thought isn’t the same as a decision, but it may be worth asking what the fantasy means to you.
It’s normal for people in relationships to feel curiosity, attraction, or a pull toward novelty sometimes. That can be about the person you’re thinking of, but it can also point to wanting more excitement, attention, or closeness—or it may just be a passing fantasy.
You don’t need to treat the thought as proof that your relationship is doomed. If it keeps coming back, consider what you’re craving and whether you can talk with your partner about that. Acting on an affair is a separate choice, with real consequences for trust and boundaries.