Traumatised Female

I went to a Halloween party recently and got quite exceedingly drunk. A new friend of mine proceeded to ‘check if I was okay’, and groped me – as well as sticking his tongue down my throat. I was paralysed in my drunken state but still repeated the fact that I was very drunk. A friend extracted me from the situation but now I am haunted by this, especially because I did not act in response. I consider myself a feminist but I don’t want to hang out with him anymore but he is a part of my friendship group and so I’ve let it sit. I still have nightmares where someone is touching me and I can’t speak.