I bumped into my ex boyfriend after work yesterday. He was friendly, gave me a hug and we chatted for a few minutes and it was a nice conversation. Before I left he said that I could come to his band's show if I want and to text him later. I didn't text him, but I'm considering it now. Part of me feels like I shouldn't because talking to an ex seems like it could lead to trouble, but he was my friend before we dated and I miss him as my friend. Can exes be friends? Should I text him?