<human>: So I need some advice on a problem. So without going into too much detail, I'll just say the basics. 

I [F21] have been dating my boyfriend [M25] for over 2 years now. There's nothing wrong in our relationship that I need advice in. The 'problem' is external. We both work at the same place and been working there for almost 3 years now. There is this guy who picks on my boyfriend for pretty much anything.

The other guy, ill name him Guy X, and I were kinda close and my bf did not like it because he said he was a douchebag and at that time I did not realize it. After a while I saw his 'true self'. Out of no where he would pick on my boyfriend for any little thing at work. Not only did my bf mention about this to me but other coworkers told me about it also. If my boyfriend did not listen to Guy X, he would go tell the manager. My bf is not afraid so whenever Guy X would tell him something to do or say he was doing something wrong, my bf would just reply saying "no" "go tell the manager, I don't care" or just ignore him. It reached the point where my bf had to have a man-to-man talk to him. He just told him to stop. My bf does not like him so he ignores him so if he doesn't like him either why can't he ignore him also? And Guy X is STILL bugging my bf. I told my bf that I could go talk to him but he says not to. I stopped talking to the guy. I only talk to him with one word or one sentence that relates to work. And yet he still tries to talk to me and is nice to me at work. So my question: should I talk to Guy X and tell him something even after my bf said not to?

Provide a brief overview of the text.
<bot>: Guy X picks on my boyfriend for about anything at work. He has already confronted him, but Guy X continues to bother him. Should I step in even though my bf says not to?