My friend just destroyed my self esteem

Hi- I really don’t know who or where else to go to to vent about this because I don’t want to confront my friend and cause a scene over this. For the sake of the story I’ll go by S. Basically I was with 2 of my friends at a party. My one friend, let’s call her A has always been considered the “prettier friend”. Of course I’m jealous of that, but she’s so humble and sweet that it never really irked me too much, and besides I have learned to feel comfortable in my own skin. However at this party my other friend, B, wanted to go talk to some guys. As we were walking over to the guys B says to me point blank “S stand behind A she’s so much prettier than you, and it will help get these guys attention. Prettier girl in the front, and uglier in the back”. I know she was drunk and we were at a party, and I shouldn’t care so much about how other view my look, but it made me feel so unbelievably awful about myself. Anyways thank you for letting me rant if you made it this far