Our long term relationship is ending my son isn't his biologically but has been for 14 years. He doesn't want

doesn't want to see him anymore. For 14 years he has considered my boy his son. How do I tell my son this. How are things divided? He's said all that was bought for my son that he had any part of paying for or bought will stay with him. I stupidly gave up my job to be a "full time homemaker" Slave is a better description. I'm mystified as how this happened. The change was so slow.. Working is what i want to do, I am not able or allowed. Leukemia. Is their any help for us/