I hear ya Lucy. I miss those every-other-weekends to myself. And, I did and still do have some resentment that my X just goes off and does whatever works for him, leaving me with all the responsibility for OUR kids.
But, I steal my alone time when I can, and take solace in the realization that it goes by so fast (their childhood). My daughter is all but grown up already, and my son is in high school now. It won't be long before my nest is empty. I secretly look forward to that, but I treasure the time with them now, knowing it won't last. *sigh*
L