My wife of 14 years walked out on me and our two kids about 6 months ago. At first she blamed me and my neglect of her but a few weeks later I found out that she had developed some feelings for her gym instructor. He had been exchanging music etc with her and slowly she became obsessed with this man. We still started working on our marriage and things seemed to improve as she felt she was ready to move back. However she started exchanging flirty messages with her gym instructor again last month - who she hasn't seen for 5 months. At first she convinced me it was just friendship but now she seems to be on a high and energized by their exchanges. The other day out of the blue she broke up with me. She still hasn't met her instructor yet but chats with him daily mostly silly stuff. Is this some sort of phase? Should I wait or proceed with divorce? She is so confused and so am I. But sometimes she is on a high when she chats with this guy and behaves coldly towards me. She is not confident that we are over.