Once a guy and I go our separate ways it's like I drop off the face of the planet. I stop all communication and if I happen to see them in public I actually as if I don't know them. I like leaving my past in the past and don't believe in being friends with exes. However one recently was upset because I didn't speak and I told him we have nothing to talk about. I didn't think I did anything wrong but he was pissed. Was I wrong for that?