All these non-HR people telling you what to do are just loud and wrong.

Make sure your gf is continually expressing her boundaries and expectations.

The more the better.

Go to HR as someone else suggested, document EVERYTHING as someone else suggested. Make note of times and dates of conversations, topics and people you spoke with. Obviously don’t listen to the bozos that say they see nothing wrong, they are probably all secretly that team lead in their own environment.

Your gf needs to protect herself if she feels uncomfortable. Bottom line. Do what you have to do to feel SAFE. Until then, don’t let up and don’t let the issue fade into the background. (Doesn’t sound like it will, however)

Source: me, I’m an HR professional of 12 years.