I'm sorry this happened to you.
I understand your reaction and how you feel completely. I also understand you questioning yourself.
A few weeks ago, I was away with work on a social function.
Lots of alcohol drunk by everyone.
An indirect colleague decided he was going to get verbally aggressive, borderline abusive and sexually demeaning towards me. It culminated in him groping my arse and then as we left the boat he repeated his actions.
As one of only four females on board , the youngest and the loudest female as well. I had no idea how to react. I felt violated and upset. But also like I'd brought it on myself.p, because with the male colleagues I actually worked with, and had been with all night (apart from on the occasions douchebag approached me) I'd been "one of the lads".
Luckily for me, when my team found out what occurred their reactions showed me that I had done nothing wrong.
Unfortunately it culminated in an almost fight back at the hotel. But my team validated how I felt. And reaffirmed I hadn't actually done anything. Does that make sense?
Because up until a week after I was still blaming myself, felt unnerved, and modified my behaviour. It was horrible.
So please, talk to your boyfriend and realise that this wasn't your fault, you didn't deserve it and you did nothing at all to "signal " it was ok.
And good men, don't do this.