As a casual observer it seems like you are way to available to him. If your goal is to keep him close to you that is one thing. However, if you are doing things to create an action or a reaction from him your setting yourself up.
This is where boundaries have to be drawn and enforced. I know you want to be nice and make everything flow smoothly but there are ramifications to D. Not saying that it is your job to punish him or anything like that but you need some space for yourself. If his constant contact about changing the schedules is a problem set a boundary that tells him its not ok to always interfere with "your" time with the kids.
_________________________ Me-41 W-39 M-15 yrs T-17 yrs D-12 S-9 S-8 B 5/08 S 1/09