BD issues WWYD?

This is a post and run because I don't have internet access at home so I am using internet at my mom work.
So we are a custody agreement that both parents have to decide on a visitation date and my ex will fly out and give me a 2 weeks advance warning atleast before he comes.
Well out of the blue he says he will contact me around the first 3 days before he gets here.. Now I'm thinking wtf does that mean and told him we are to follow the agreement please.
Mean while I ask to tell me the exact date he can fly out so I can try to tweak our schedule. and we had a little trip planned already for months to visit my sons god father and then he finally told me he plans to come pretty much the day I leave and he plans to stay as long as he can and that he has other plans here too.. and we are going for like 6 days.
I messaged him and said that we have an already planned trip and I'm sure he will be pissed at me but wtf am I supposed to do can't he come at another time...
Also a little back story I still have a stay away order against him because he was verbally abusive in the past and has made a threat against my family in the past. He also lives out of state so I know travel for him is hard and I feel bad but I can't just cancel a trip that we had planned because it's a rare occasion we do this type of thing... I know he wants to see our son but why not another day I don't want to be guilt tripped from him because he knows how to push my buttons....

Quoting Wolfskrieger:" This is a post and run because I don't have internet access at home so I am using internet at my mom ... [snip!] ... to see our son but why not another day I don't want to be guilt tripped from him because he knows how to push my buttons.... "

Meh, not your problem. If he would have done it the way it was agreed, none of this would be happening.

I would contact a lawyer and see what you can do, honestly. I know he has to give warning, but you don't say if the warning has to be verbal or written. If he comes out and you're not here, he can claim that he DID give you two weeks' advance notice, but you ignored it, and then you'd get in trouble for custodial interference. If he has to give written warning, that's a different story. However, you didn't say WHEN this trip is supposed to occur, so if he's telling you NOW, and the trip isn't for a month or so, then he IS giving you ample notice. Tough call, so I think contacting a lawyer is the best way to go.