The OP is getting victim blamed a lot here. I can't imagine how she feels reading this
People say she acted inappropriately, does that make it her fault? You could ask the same of victims of assault who flirted with guys, who were drunk, who wore a short skirt.
Being in a guys bedroom does not give him the right to force himself on her. I can't see anything in the OPs posts that send a clear signal to him that she wanted this. Mixed signals do not entitle this man's behaviour.
And she feels she has been assaulted and came here for advice on how she can deal with that. Not to be judged.
OP I really hope you seek counselling from a professional, who will know how to objectively talk to you about this experience.