how to react

>>17693629
Your friend knows how you feel. Some people have insecurity issues, so they constantly put themselves in relationships like this. Don't give your friend any ultimatums, but you can slowly drift out of the picture if that's what you want. Try to make it known the next couple of times you talk to him, you only really want to see him and not his girlfriend. If he asks why, don't go too much into detail, just tell him you'd rather have it like that.

>>17693629
As the best friend of a girl who collected, over the last 10 years around 4 physically or mentally abusive boyfriends and managed to cheat on the only good guy she got, give up on that.
Stop giving him advice, stop taking his life so much at heart, stop worrying so much about what he does. Be there for him, help him if he asks, but some people don't want to be helped and you cannot save people who don't want to be saved.
Some people are genuinely idiots in relationship. It's not your responsibility to look after them.
Let him do his thing, give him your advice once and only if he asks to, whatever he does next is their business only.

>>17693643
Curious, but how is your friend? Is she miserable? Regretful?

>>17693650
She cheated on the "good boyfriend" a few months back, and dumped him recently. She dumped him in the morning and fucked some other dude the same evening. I guess she is not really broken-hearted. I believe she cheated on the boyfriend with this dude too, but I don't think she's particularly miserable or regretful.

She has every sort of daddy issues that is humanly possible - dad beat his mother to death, left the country, sent her creepy letters for years till he died 3 years ago.

>>17693640
This
Never go into details when they ask why, if he hasn't understood already. He won't understand, when you explain to him again

some people are into bestiality, just accept it