Okay so here's the story.
I am close friends with one of DP's friends ex girlfriends. She's an absolutely lovely girl and has been treated like shit off DP's friend for a while so she ended the relationship some time ago.
Now this is where it gets difficult.. friend has ended up chatting to DP's brother who is also friends with her ex (they have the same friendship group). They weren't best friends but still friends.
They're really getting on and would like to move forward. DP and his mum have said BIL is being unreasonable and shouldn't even consider it.
Is he BU? Friends ex has no loyalty to her whatsoever and had already started meeting up with his ex GF and has taken her and her child out. He's round there every night and has told friend that he wants nothing more to do with her and that he's moved on.
I'm seeing two sides to the story but I am interested to see other's unbiased opinions on this!