My fiance and I had a house built in which we went under contract back in August. The house was finished and we moved in on Dec 23rd. We have now split up. She makes double the amount of money I do and paid the majority of the down payment and majority of the mortgage payments/bills. I could only contribute like 25% to them. She now wants me to pay her half of everything, even the down down payment, is she entitled to request this?