I feel your pain!!! Every, I drop my two toddlers off to their mother and the house is soooo empty without them. They hate goin there cuz "mommy is mean." I do run a tight ship and try not to ask too questions. I also plan activities for them when they are with me. I typiy have the weekends planned 2-3 weeks out to ensure the time we are together, we are having fun together. My concern is Maybe, we are having too much fun and that is making the exchange is more difficult?