My girlfriend went to a party last weekend and she got pretty drunk and I didn't think anything of it because she's a college student and all. I wasn't at the party but saw her afterwards. Anyway I found out from some kid that I barely know that someone put something in her drink. I confronted her about it and she admitted it and said that I wasn't supposed to find out because she didn't want to worry me. Her friends who I'm friends with knew about it and when I asked them before I confronted her they lied to me. My question is what do I do? Do I get mad? Break up with her? Talk it out? I feel a little betrayed because she didn't tell me and I think she should have in a situation like this.