Why is he doing this to me?

my boyfriend has lived with me for almost threr years. i recently bought a houde and now i have to pay a mortgage. he was not paying me anything at all . now he is leaving and moving back home.he said that he has to hel phis family , and he has not helped his family in the whole time that he has lived with me.he has said this before and never did it, he ended up comming back to my house? he all of a sudden said that there is no future for us. than he saw me crying and than said dont cry.? ? than after he got out of me he kicked me out of rooac because i was crying, and he said that he needed to sleep? that rooac was sappose to be the word rrom..room. i dont know what to do i am steaming right now. i dont believe him about his family