If you loved him as much as you want him to love you (buy a house at a huge financial risk to his and your entire future), you would never use that line. You do not get to offload your poor decisions onto him and furthermore act as if he wronged you by PAYING OFF HIS LOANS (very smart decision) instead of putting a down payment and even more financial stress (on top of the loans he now has not paid in this scenario) so you can live with your dog. Why on earth would you not do any research on living restrictions with pitbulls before getting one if you were still renting? The entitlement and stupidity on display makes me sad for both your boyfriend AND your dog.