I'll try to be as short as possible.

My (33F) boyfriend (33M) came home from the gym with a horrific story. He went to train with his friend (35M) and one girl (F30) who has a huge crush on my bf tried to catch his attention (he doesn't talk to her because she bullied me since me and him got together).

To get his attention she ran to our common male friend (that was talking to my bf) and dropped his pants in front of everyone.

The m-friend looked at her annoyed, and pulled his pants back on. A lot of people in the gym, nobody said a word and the guy was, as I understood, embarrassed.

My bf was speechless and his friend didn't want to discuss the matter any further.

This woman has been my nightmare for a year until I decided it was time to stop hanging out with her and her group.

My boyfriend stopped talking to her when he saw what she was made of, and since then she tried the weirdest shit to get his attention.

Now this. Now she's going after other people.

I was thinking to send an anonymous email to the gym and tell them what she did (she's an active known member of the community).

A bit because I despise her, a bit because I'm deeply sorry for this guy (what if it was the other way around??) I really think she should be done and over with her attitude.

What should I do? What would YOU do?

My bf said our friend (the victim) didn't look like he wanted to bring the matter further.

Help