When does it END?

When we last left the ongoing saga of 'As The Stomach Turns- The Story of the Deadbeat Dad" his mother and I had supposedly agreed that she could 'see' the kids. Now suddenly, it's 'the weekend.' And if I don't let her have them for the whole weekend, she won't see them at all, and he won't pay child support. I let her have them plenty during the month that we were up there, but that was