If he gets fined for her taking their 2 kids out of school for a weeks holiday with her partner.
It would only be until his share of the fine has been paid off. This is in light of the recent court case where a couple got taken to court and have to pay nearly a grand for taking their kids out on holiday. Apparently each parent is liable, even non-resident ones who have done nothing wrong! Why should our family suffer for HER holiday!