I've been married 14 years (3 kids) and have never been unfaithful until now. A few months I was travelling on business (out of state) and I met up with a female cousin who I had not seen for a long time. We went bar-hopping all night, got drunk and she ended up staying in my hotel room because she said she was too drunk to take a taxi back home (outside of the city). I didn't think twice about having her stay with me since we're relatives and I'm not attracted to her. We passed out and I woke up hours later to her groping me and trying to move on top of me. At first I pushed her off, she continued and told me that she had a long time crush on me. I told her she was drunk and to go to sleep, but she continued to throw herself on me. I finally just went along and 'it' happened quick and we fell asleep.
I knew from the moment I woke up that I was in the wrong and made a mistake. I told her it was a mistake and that I should have stopped it from happening. I have not talked to her since it occurred and she has sent me two text messages since saying hello.
I feel terrible about this and I don't know what to do. Do I forget about it or should I be honest and confess to my wife? I have buddy's that have always cheated and don't show any remorse. I feel like a dirt bag, but want to preserve my marriage.