<human>: Short story, I was at a party last night with my girlfriend, who quickly passed out. Alot of time went by and eventually the only people still awake were her best friend, me, and my two best friend. All of whom were pretty drunk. She was starting to feel me and my buddies up (Mostly my friend, but she started to grab at my hips, nothing else) and it was clear that she wanted a threesome.

I didn't feel right about that (naturally) and I declined and left the room, one of friends followed as well. I didn't kiss her or anything. But I can't help but feel guilty. I made the right decision but I still feel like a shitty person for even being there as long as I was before leaving. I just didn't really believe what was happening at first.

What do I do? Do I tell my girlfriend and cause a commotion? Or do I just avoid her friend in the future. They've been friends for almost 8 years and I've only been dating this girl for 7 months. It would crush her to find out her best friend did this, and I'm worried that her friend may try to make me look bad as a defense. I vaguely told her about it but neglected to tell my involvement in it.

Just, as it stands I can't help but feel guilty.

Can you give me a shortened version of the text?
<bot>: Girlfriend's best friend tried to get with me and two of my friends, I did the right thing but not before she started to feel me up. I feel guilty and don't know what to do.