We are looking after the G-kids because my son is away in LA on business.
Their Mother refused to have them because "its not my turn to have them" so we stepped up to facilitate.
Now guess what? She contacts my son to say she has missed her eldest (he's been away all week on a school trip) and would be happy to have the kids after all.
My view is that she had the opportunity to be nice and take this on at the outset "because they are my children" but she always wants to be the offended party and act like a prima-donna.
Well guess what, we don't like our lives being messed about by a narcissistic cow who expects everyone to dance to her tune.
My wife no longer cares, because she has enough on her plate right now but dislikes the manipulation and sheer awkwardness it causes, we have made up bedrooms, bought kid-food in etc. etc. I really boils my "P".