My ex and I were in a serious relationship for a year. He is a very ambitious man and moved to another continent for work. I am 31 and didn't want to wait around for him to sort out his life, and long distance was hard, so we broke up. Within weeks of our break up, he had a new gf. His new relationship moved super fast. They met each other's parents within 2 months, and they were writing I love you on their Facebook walls and she tags pictures of them together regularly. 4 months into their relationship, we met up when he was in town and he cheated on her with me. I felt guilty about the situation and we agreed it would never happen again. He has not been in town since then.
He has been with his gf for a year now. We have stayed in touch as friends and do video chat about once a month. Our conversations were pretty neutral before but lately he has been complimenting me and joked about us getting married. He also emailed me on New Year's day to say he wants to chat. I thought maybe he had broken up with his gf, but I checked his Facebook profile and they are definitely still together and she is still posting on his wall about how amazing he is.
Question:
1) Do you think his behaviour is inappropriate
2) Does it sound like he wants to get back together, or is he trying to play me?
3) My ex comes across as a really nice, innocent guy. His friends, family, and girlfriend all think he is a really good person, but I think his behaviour says otherwise. It annoys me that people don't see him for who he is. What should I do? I still have feelings for him, but I'm not sure what he wants, and I don't know if I could be with him given his character flaws. If he cheated on his gf with me, he could have cheated on me too.