I have a friend who has got to indoor rabbits, Although when they are small they look adorable but once they get bigger they can be a handfull in the home, There wee stinks even in a litter box, they are natural borrowers and will scratch and try to dig your carpets up, chew any electrical leads that is laying about regardles if it is plugged into mains, and chew any wood they find, skirting boards, beds, sofa. I would keep them outside personally, and if ex husband bought them he should fork out the extra £100.00 pound for a decent hutch and run.