Most Helpful Girl
I so hope you can both grow up for that baby.
Stop the arguments, get some parenting/custody orders in place and get a formal child support arrangement set up. You don't owe him money for furniture he failed to take with him when he left.
I'm sure he is going through a difficult time with his mother, and that's very sad but if you aren't together it's not your responsibility to make him feel better, especially if it's bringing conflict and arguments into your home with a baby.