So why can't ex lovers remain friends?

[HeavenslilAngel]

So me and my ex met our freshman year in college. We knew each other like 2 years and were like brother and sister. So we decided to try dating. Well I saw him more as a brother than a boyfriend, I was HEAVILY involved with ASA and we had exceptionally different relgious backgrounds. So we ended up breaking up. He has since distanced himself from me consideribly and I moved 4 hours away. He now has a wife that he met on the internet that does not even have a GED, and after like 6-7 years he still is like a semester or 2 from graduating undergrad. I've had a Masters degree almost 2 years now and graduated 3 years ago from my undergrad. In reference to the physical appearances that are turn offs, he has a very pronounced unibrow and bad teeth. Oh and I saw him at a wedding like last year and he gained weight with his new chick. We are still civil but not as close as we were. I feel sorry for him because I know I and other other potential chicks could be better; but I have too much else to think about and do in my own life and it has been like 2-3 years so I don't obsess over it any longer. I'm just single and ready to mingle and stay busy in the process.