Hi.. I have been single for almost 8 years. I have 2 teenage daughters. Their Dad seems them for a minimal amount of time. The first few years we all got on great and I would say we were friends. Two years ago I discovered that he knew his present girlfriend 2 years before we split via a picture turning up on facebook. I asked him to remove this in case the kids got wind of it...He said I was being ridiculous.. So things began to deteriate between us and now I can bare to speak to him and I feel so angry. I don't even want to think about him and I am getting annoyed at myself..why can't I let this go?