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

Recently, my girlfriend just went to her first real party.  I've always trusted her, but I just don't like the idea of her getting drunk without me.

She told me she got tipsy but that she had good judgment the entire time and everything, but she also said she fell of a pool table she was sitting on, so that doesn't really add up.  I just feel REALLY uncomfortable with it.  When I try to explain that to her, she tells me she's offended that I don't trust her, but I DO trust her - I just don't trust alcohol, especially with all the stories I hear all the time about cheating.

She DID cheat once before on someone else, but that was a few years ago, and that wasn't at a party or underneath the influence of alcohol or anything.  Also, when that happened, I think she had had some feelings for the person she cheated with all along.

Am I right to feel this way?  This has caused me a lot of stress.  Do some couples actually have agreements where they don't drink without each other because one or both of them feel really uncomfortable?
<bot>: Girlfriend went to her first party without me and it makes me feel very uncomfortable. I trust her, but not alcohol.