Bad Dad?

Well, today my husband calls me and says he can't take our daughter for the weekend, because he has a lot of other stuff to do, but that he will take her Sunday. One day out of the week you can spend with your kid that's garbage. I went and filed for child support today and as you imagine he wasn't really impressed and he called me a heartless monster. Is it true??? How did we end up here. I told him if we could figure it out then I would drop my petetion. What to do?