It is my opinion that this was sexual assault. Also it is not helpful to tell the OP "you brought it on yourself." Just because she didn't do things the way you would do them...

Stealthing (slipping off the condom) is a form of sexual assault. She said no. He got her drunk. You can't consent when you're drunk. Maybe she has mental health issues, issues w judgment plus she was intoxicated. This was assault.

Lily, I'm sorry this happened. No, he is not a friend. No real friend would do that. What he did was unacceptable. I'm glad you're in therapy and talking to your therapist.