Claire - I've just been catching up on your thread. I'm having much the same problem with H. We are actually supposed to have a 50/50 arrangement, but he has changed the schedule EVERY week since he moved out five months ago. I finally had a conversation with him about it because it was affecting D7. She would say things like, "I'm supposed to be at Daddy's tonight, but he has something important to do." Nope, sorry, playing video games with your buddies isn't more important than your daughter. Of course, I didn't say that. What I did say was that D7 seemed to be bothered by the lack of consistency in the schedule. I did not say it in an accusatory way at all. He agreed and said that we should definitely be more consistent. And then he still continued to ask to trade nights and sometimes even for me to just take extra nights.

I found that I had a lot of resentment over it. So, I ultimately came to the same conclusion you have. I need to GAL more so that I'm unable to make the last minute changes he constantly requests. If there are requests that I can accommodate without changing my plans, I will do so. Otherwise, he'll have to figure it out.