That doesn't sound unfair at all! They are divorced. They each have 1 week. Separately. She doesn't get to take his week. Some people expect everything for nothing. I think you're totally justified in standing your ground and giving her 1 week, as was agreed on in the first place!

In case you can't tell, stuff like this frustrates me. You would think we are overpaid for an easy job or something!

Good luck!!!