How to teach my husband to learn the difference between his parents home and creating his OWN home?

Newly married, make a year in july but recently moved ALONE two almost THREE months ago and we used to live with HIS parents, its his first time living alone with someone (me) and acts distant or simply sharing an apt with someone. Hes always intouch with his mother almost everyday, but excludes me because im "strong" and dont need of him. Hes am only child. 3 montjs ago his first time out of his parents house and seem not to be conscious about it and his behavior has worsened. When we lived with his parents he was sweet and nice but mever around hos mother. Seemed to annoy her so he stopped. Ive lived in the love shadow for almost 2 years. I dont know if i should fly back to my home country and give him space to reflect or should i keep holding on and stay where we sre temporarily living (Europe) I have no one but him and its hard to keep up with someone who seemed to be ready to build their own home vs his and his mothers emocional dependence for one another. I hope this sumed up story , i can get some sort of idea pr clearance on what to do. My thought of leaving is basically returining to my
Home country where we will "live - to work & study" and i would be going ahead untill he gets his VISA to enter my home country. Thats another yr to wait. Anotjer yr i dont want to keep being alone & hurt.