I have experienced similarly persistent (or arguably even more persistent) unwanted sexual advances from other men, but I certainly didn't feel "assaulted".

As a socially clueless gay man, I was hoping someone could help elucidate the most problematic parts of McClure's behavior here. The two factors that stand out for me are

1) McClure controlled the funding of the agency Yeoh was heading, so he was in a position of power

2) McClure is a man and Yeoh is a woman, so McClure can be assumed to be more physically imposing

Would it be correct to say that these two factors are what make McClure's behavior inappropriate? In any other context, I would consider asking someone something a third time after two "no"s to be an example of annoying badgering, but not necessarily harassment.