5. He wants you to feel jealous
This is a case where guys try to make their new girlfriends feel a little sad inside by making them wonder, “Has he come here before?” If your boyfriend starts to talk about his ex without you asking, he might be trying to make you jealous on purpose. Depending on the situation, you could get upset and tell him something like, “I don’t want to know!” or simply say coolly, “Let’s talk about something else.”