So co-parenting seems to be going well generally, I was feeling a bit smug. Oops. Now I’m not so much. Exh tells me at short notice he is expecting to ditch his parenting responsibilities for a whole week (!!) because it’s his gf birthday. She’s 40 something. Really? He is being a twat I think. Surely they can just go out for dinner when he doesn’t have his DD. Which is almost all the time. Or AIBU?