<human>: Can you provide a brief overview of the text?

I've been in a relationship for about 6 months and I love my girlfriend to death. But, a little while ago she and I were on very bad terms. Due to some complications not involving infidelity or anything she had broken up with me before I took a trip to see some friends. It was not clear whether or not we were back together before I left for my trip. Regardless, she stopped talking to me while I was away for those few days and we were not on good terms.

I was with friends and after a long drunken night at the bars, my friend pulled out his laptop and said we should go on Omegle (the webcam site). We all agreed. Upon getting on, I bet my friend I could get a girl to show her boobs to us and so we found some girl and she did after I egged her on a little. After a little more talking (all by messaging), she began to finger herself and we all watched in sort of amazement and started laughing. After a few minutes, we decided what we were doing was stupid and signed off. 

Now, I didn't realize at the time just how disrespectful to my girlfriend this was. To me, it just seemed like porn. After some thought though, I began to feel extremely guilty over it and have been beating myself up the past few days. I am truly ashamed. I've debated telling her what happened, but part of me knows this would just fuck up our relationship. I know that nothing I did had any true meaning or emotional value, it was really just boredom. I would never cheat on my girlfriend and I didn't see this as a form of cheating at the time. Looking back, I can't believe how stupid I was. Regardless of whether or not we were broken up, this girl means the world to me and I never thought I'd do something like this.

Can anyone give me some advice on how to feel or what to do? Do I tell her?
<bot>: I talked to a girl with my friends over webcam and egged her on to touch herself out of boredom. What do I do now?