So I don't know if anything that happened to you counts legally as sexual assault, or if you would define it that way at all, but I recognize the feelings you're going through really clearly. In my own experience I know that even things on the right side of the line can mess you up! It would probably be worth it to look around the RAINN website and maybe give them a call.

Whenever I get in a panic about something, the most comforting for me is "what is the next best thing I can do". I sounds like you've done a lot of the next best things, you're staying with a friend, you're not doing too much, you're giving yourself time to recover. I think that's all you should ask of yourself right now.

I check jspt pretty often so reach out if something comes up. Thank you for posting and I hope it helped to get things out a bit.