I petitioned for divorce from my wife 3 months ago (in my state that's the minimum waiting period before a judge approves it). It was amicable, 50/50, I keep the house (via loan assumption), and pay child support. We agreed that we'll stay in the same house until the end of the school year for our daughter.

Now that everything is finalized, I'm asking my ex-wife to pay 50% of the mortgage (just the mortgage, not any other bill or utility) while living here (roughly equal to the amount I pay in child support each month, regardless of if she's living here or not). She's claiming this is "abusive" and that she shouldn't have to pay.

Am I wrong in expecting her to pay half the mortgage?