Is there anyone out there in my situation ?

My bf and me been together for 3 years. We got a house with the help of my parents ( money for down payment ). My parents moved in with us 'cause we need help with mortgage payments. Since my parents was the one who borrowed the money for down payment. My Dad's name on the Deed, so do my bf's name. They both signed and add my name on the Deed also.

If me and my bf break up. And i and my parents moving out, is it legally that my boyfriend should pay for the down payment for the house which is my parents borrowd and still paying for it now or my parents, even if , they'r moving out of the house still have to pay for it ?!. I dont know what to do in this situation, i dont want to make my parents in debt, and also dont want to live with this guy anymore. It's nott hat we cheat on each others, it's we fight, and using bad words, even hitting each others almost every weeks. Im tired of this. any advices will help. thanks !