my bf and i have a 7 year old child in common. He left us in June 2015 for a girl 22 years younger than him. The house is in his name , I have paid th

I am not sure what you want to happen.  However, you need to get a child support order ASAP if you do not have one.  Go to the local family court in your county and see a pro se clerk on how to apply.  Then, you can seek support for payment of the house.