<human>: Condense the text into a few key points

A group of us went out to the bars for drinks, we were all pretty drunk. We walked back to our hotel room and continued to drink. We were all about ready to go to bed but my gf and my friend went outside to have a cigarette before bed (they were completely hammered at this point). I passed out. When I woke up both of them weren't in the room. I walked out to my friend's car and they were both in there half naked. Turns out he fingered her and she gave him a blow job. 

My friend and I have been friends since 1st grade, and I currently live with my gf. Both don't drink a lot like that so they well exceeded their limits. 

I really don't know what to think or do.. part of me wants to try and forgive them and try to move on, and the other part wants me to send her packing and cut ties with my friend.
<bot>: My gf and best friend got super wasted and ended up fooling around, and I don't know what I should do.