Hey P42 ~ I don't know if anyone can prevent your ex from having anyone she wants for a sleep over...unless it was specifically written into the divorce decree, I think you're SOL.
As much as it sucks for you to think about, and as much as the kids complain, there's little that can be done. Your ex will do as she damn well pleases...please don't call her again about the OM.Please...if this man is abusing your children, call the police. You calling your ex about the OM will only strengthen her resolve to keep him no matter what. She got your goat, and now she knows it.
The medical bill...make arrangements with the doctor's office or collection agency; taking your ex to small claims will make you look like a spiteful, bitter curmudgeon, again strengthening her resolve... Kill them with kindness. Karma will take care of you.
Happy Thanksgiving, buddy. You and your kids are in my prayers.
Me - 46 She - 36 Daughter - 10 Married 10 yrs 1st Bomb Date 12/17/06 (Merry Christmas!) D Bomb in January (Happy New Year!) Every other week custody of D10 She has OM who helped her walk away Divorced 07/05/07