He doesn't want her name on the house, won't pay up to prevent her being declared bankrupt - how much does he truly love & trust his partner? Yet despite all these signs of not commitment he is happy to have children with her. If a partner bears you children you really should be happy to share everything such as the house etc. (and yes debts/tax bills) even if you earn far more money, that's what a true partnership is.
I'm sorry but I did have to laugh at this. We don't know them personally, we know nothing about their relationship, let's not decide what they do or don't want in their relationship