What does the court order say? In the OP you state that you have 50/50 with the boys and that you have your daughter 5 out of 7 nights a week. Then you go on to say in a subsequent post
"Ok so exwife called and said that she was going to make sure that we stick to the schdule with first, third, and forth weekend visits with my sons
That quote looks like Texas standard possession for the NCP.
What EXACTLY do your orders state? If the orders state the 4/3/3/4 schedule for the boys and the ex is trying to get you to standard possession then she needs to pound sand. If the orders a standard possession and you all have agreed outside the orders to the 4/3/3/4 then you might have to finesse her. So, please let us know what is actually in the orders regarding possession of all 3 kids.