hello. i have name changed and posting in aibu for traffic. a male family member has been in an emotionally abusive relationship for a few years. he is coming to the realization that he might need to leave his partner, but they have two children together (one still very young - he did not want a second but she threatened to kick him out if he didn't agree to try). they are not married. he adores the children but has no idea what to do. he has a full time job and pays their mortgage and bills (she doesn't work). he is worried about what he would need to pay in child support if he left the relationship (he obviously wants to support the children and see them). he is also worried about whether he will still be forced to pay the mortgage etc. he is scared she may be spiteful about these things. she has family support who have helped her financially in the past, but he doesn't.
i don't know much about this so no idea how to advise him, other than to contact a solicitor.