7. He wants his girlfriend to know more about him
“I think romance tells a lot about people’s personalities and the way they act.” Guys talk about their exes because they want their girlfriends to understand more about them. You can also find out how tolerant your boyfriend is by talking about your ex-boyfriends, like “Then, I want you to know about me too.” However, there is always a risk that your boyfriend might decide to break up with you because he cannot handle the conversation.