What should I do

Last week I met up at a club with my coworker/friend M, her friends and her boyfriend who I've never met. We all had quite a lot to drink but nobody was overly drunk. When I arrived the others were already there and M told me she was fighting with her bf and they might be breaking up. She was very upset by this. They have been together for 4 years and she told me she thinks he's the one and imagines her future with him. Then they kind of had a fight and M went home (her friends as well). I stayed a little longer and her bf started hitting on me. He told me they have been

It looks like your post was cut off. I don't know what your question is.