This is my husband's ex.
Custody is currently 3 nights a week with us and 4 with their mum.
She wants to go on holiday in June and has asked us to have the children for the whole week. However the week she wants to go coincides with my husband also being away for 4 out of the 7 days so I've said no.
We have shared DC who are little still and then my husband's older two and it's too much for me by myself.
Both of them think I'm unreasonable but I've said no. AIBU?