My question involves a child custody case from the State of: Alabama
I've been divorced for over a year. My ex is in and out of our children's lives. He's asked to sign his rights over twice but when it comes down to it he never goes through with it. He's over 1,500 behind in child support. He calls me out of the blue cussing me raising hell about anything and everything. I can go over a week without hearing from him and then out of the blue he calls me cussing me like a dog calling me every name in the book. I do not remind him of his weekends, if he gets them he gets them, if he doesn't then fine by me. He texted me while ago and said "i need the kids next weekend, I have a family reunion." i said "no it's my weekend. I already have plans with them." he goes off calling me a B**** and saying he was going to take me to court for custody, that its always my way and I never let him see his kids. I'm so tired of being talked to like a dog and bending over backwards to try to be civil with him. Our divorce papers do not have a set vistitation because when we divorced he was working at a factory 7 days a week on 2nd shift so it was almost impossible for a set vistation. Our papers state " vistation is to be agreed upon by both parties. A set vistation is hard due to ex husband's work schedule." So legally do I even have to let him see them? Our kids are 3 and 5 and my 5 year old cries everytime she goes to her daddy's house. She can't stand him. I've never said a word in front of her about him because I try to keep things civil for them. He recently got remarried and he's came to my house 3 times because him and her got into fist fights in front of my kids and he needed to drop them off because one of them was leaving or some other bull crap. He broke a glass table in front of them because he got mad at his wife. I'm so tired of my kids seeing this stuff and I feel totally powerless. What can I do?

