I think this is an important point to make. I think most people, myself included, are fine with sharing personal information if the person i'm sharing it with isn't going to use it against me. That's always been the case dealing with people.
Sexual Harassment can mean anything to these usurpers.
What it probably means is a big, fat, ugly nerd tried his hand at flirting. Didn't go so well. A little bit of awkwardness for both parties ensured. End of story.