Sadly, the only thing that can corroborates her allegation is if another victim step forward. I have no doubt shit like this is not a one time thing, they just always managed to get away with it.
Yeah this never only happens once. They can't help themselves once they get away with it.
hinestly I don't know and I previously liked him. But her account does seem to say it is some one acting in a way he can have deniability later (he doesn't go far enough to be blatent, most things are implied, and he can easily say she's just being over reactive) and his reply would be what I expect of some one who is that manipulative. That and just judging from what I see of him I could see him being that way (but, I don't know the man and can only judge from his show. Sure, it's a persona but actors still put a little of themselves in their roles and this is a personality he came up with himself to play).
In the end, I really don't know. But if she is not lying then he is a POS and this statement makes him even more of one cause he is very much trying to victimize her more by playing, "it's all in her head." And trying to make her look bad and maybe make her doubt herself. I know there is a word I want to use for that but I can't remember it right now.
Gaslighting? I think.