Help with relationship

Me and my partner have been together for 5 years now. We have a 3yr old son. I’m alot younger than him. I have a bachelors degree, a career and had purchased a home before we meant. We have been living together since our son was born. He on the other hand, had a slower start in life. He is in his early 40s. No college, career, just doing odd jobs. I can kind of say I’m the breadwinner between us but i never ever say anything about that. I don’t mind. Lately He has been voicing opinions about wanting to accomplish things in life and going after his goals. I push and motivate him all the time. He wants to get an apartment so that he can have “something of his own” because he feels as though he has not accomplished anything and feels as though my house is not “our” house. He doesn’t feel comfortable and says he feels less than because he doesn’t have anything for himself. I understand where he is coming from but i also don’t. It seems as though we are on two different life paths and we aren’t going to be together much longer. Idk what to do or how to feel.