Originally Posted by SNeacail
(he will leave if you don't accept his girlfriends).
I think it's worse than that. He won't leave, but he'll just accept it if SHE leaves. That means he gets to be the guy whose wife left him because he was willing to work things out and she wasn't.
But ironically, the OP will probably get a lot of support from the mainstream community if she DOES decide to leave the relationship for these reasons.
It is unfortunate that there are children involved in this mess.