Hummmm....if you decide to take him back perhaps you can agree to some type of legal deal (through the lawyers) where if he files for D again you get 100% custody (or he ONLY gets every other weekend... and maybe you get the house!). This way, if he waffles again he'll lose even more...
Do this now while you are still holding all the cards.
Explain that you need to protect D. She can't go through any more "wishy-washyness" on his part because she'll end up with a guy who does the same thing to her. She needs for him to be a healthy role model so she will eventually have healthy relationships. If he cannot provide this he needs to do the next best thing... which is allow D to have a more stable environment with you (a main "home" and dad as a place to visit... no 50/50 cr@p).
There is no arriving, ever. It is all a continual becoming.
