<human>: Give me a shortened version of the text

My gf and I have been dating for several months now and it's been very good and butterflies. I invited her to a friend's party as I wanted to just drink and have fun with her. Throughout the night everything going well, we were drinking birthday shots for a friend. 

I was with my gf for most of the time, but as normal I talked to other friends and she made her own friends too which was totally fine. However, towards the end, while I was sitting down on the couch I saw her talking to one guy, touching him too. She was laughing, hugging him, touching his legs, and holding his arms and hands. 

Not gonna lie, it hurt to watch a bit. It stung, but she claimed she was drunk and blacked out and doesn't remember what she did. She also dragged a guy to the bathroom, by his hands. I watched them go, and she didn't go into the bathroom with him thankfully, but he did stay by the door asking how she was. I don't know why, is it normal to feel bad, hurt, and jealous from this?
<bot>: GF and I went to party, I feel like no matter how drunk you are, having such intimacy with other ppl is painful for me.