Sorry for the forecoming block, but I wanted to get my thoughts out about this. Very weird to be doing this on a porn forum, but I can honestly say this is the most reasonable discussion of the topic I've seen.
Having now seen both accounts, I don't think anyone is necessarily solely to blame, although ultimately we would need corroborating testimony from others who were present to be more determinative of the facts.
It's terrible that she now feels that his behaviour was sexually abusive. It clearly makes her very emotional, and I'm sure those feelings are genuine.
At the same time, though, I do feel bad for George. Yes, messing around with drunk people is never going to end well and that is a judgement he should have made. But, on the basis of his characterisation, he didn't do anything that wasn't impliedly accepted. Silence is not consent, but consent can be implied, and it sounds like his experience was of friendly affection from her over the course of the night. Should he have asked more explicitly? absolutely. But his experience was of a girl who was, at least in his words, having fun, being friendly and showing nothing but affection as they became more and more intimate. It's unfair to make him out as some horrible monster as a result.
I don't love his theory that she has retroactively convinced herself that the experience was traumatic given the attitude of her friendgroup - I think its probably more along the lines that she was drunk, caught up in the moment and all that made her unclear of her own feelings at the time.
Of course, this is all based on my good faith assumption that he has described his experiences honestly. I'm inclined to believe the bulk of what he said, given that the messages he showed on stream generally fit with the vibes he was describing.
Ultimately another great reason why parasocial relationships suck. She probably would have had her thoughts and feelings clearer if she wasn't a viewer, and wasn't influenced by the whole 'bigger creator' dynamic, and may have felt more confident expressing discomfort in the situation.