I have been married for 17 years. I would call them blissfully happy. In the past year my wifes father passed away which was extremely difficult for her. She started drinking quite a bit, and it all came to a head about a month ago. She went out with some friends to a Halloween party and got really drunk. She then started grinding with some men at the party which led to clothed but innapropriate touching. Is this cheating? I feel betrayed, and heartbroken. My wife has apologized but is upset with me that I would even consider leaving her over something she sees as only crossing a line. She occasionally lightly flirts with guys, but has never done anything like this before. We are both in counseling, but I need to know if I am overreacting. Any advice would be appreciated.