My girlfriend is out of town for school. A few nights ago I was hanging out with some friends who just happened to be girls. We got extremely drunk, and one of them ended up coming home with me, partly because she doesn't live in town and needed a place to stay. We ended up having sex. The entire time I knew what I was doing was extremely wrong. I am in love with my girlfriend and thought I respected her. But I'm also in love with having sex, and had not done so for a long time before this incident.
I will NEVER cheat on her again. This incident showed me just exactly how important she is to me. She's my entire life. But.... the question is: Should I tell her what happened? Or let bygones be bygones, and vow to be faithful?
Thank you for your feedback.