I am friends with two of my exes. One is my very first gf from years ago. She and I are passing friends. My last ex and I are friends. I'm even friends with her now fiancee. We had dogs together and I got one and she got one. I have to say its all about what each party feels. For me I am friends with these two because we didn't break up for crazy reasons. Like cheating etc. We just realized we would be better off friends. It. Was a mutual break up. Not syaing there wasn't hurt. There was. But both experiences have taught me a lot about who I am and what I want and need in a partner.