My BFF is going through a divorce it has lasted over a year since she wants to take him to court for child support then she accused him of domestic violence but lost and she lied in court saying she lived with her mom but after leaving he finds out from her brother that she moved out she has been with two men that he knows of n now lives with her bf the kids are not accustomed to profanity and this guy curses a lot around the kids not to mention verbally attacking their father and saying to my BFF that he will fuck him up himself. She alienates the kids and is coaching them to lie to their father. He records all the phone calls and she is always interrupting and tells my BFF he can only ask and say certain things. WTF they are his kids he should be able to talk to them about whatever he wants. Do u think he has a chance on custody? Custody battles are very expensive? What should he do?