So your son wants to be left alone. Honor his wishes. He will more than likely eventually want you to come over, but you need to relax and give him what he wants since he is an adult

So how bad did you and your family treat him?

I grew up with 2 brothers, my sister lived with us off and on. My birth father was living with his GF for years and her kids (good relationship with father and step father). as soon as I had steady work and decent pay I got my own place. and I did ignore stop ins if they didn't tell me before hand. I simply like having my own space, and growing up crowded, i like being left alone after work most days. I visit family all the time, me and my brother bought a house and have people over. But I get annoyed when people are in my room, it's MY space. he will most likely come around when he gets a taste of being left alone. and I bet he will still talk to you, he just wants something of his own.

This is my dream... I'm a fan! - he wanted something, planned and went for it. That's all one parent could wish - a child who goes after his dreams regardless what the parents, family etc think. I spent nearly a year looking for a course that would get me a job that doesn't involve.human interaction, then I quit my career of 10yrs and took a year.of unemployment. I succeeded this year, now I'm three years from buildibg my own house middle of nowhere, literally 20-35km of no humans depending which direction. It doesn't mean you won't have a relationship it.means your son has his own space where he can distance himself without feeling guilty or anxious. I dislike people, to the point it takes me days to recover from a phone call and I need to pop pills. But when I'm left completely alone I'm the best person, worker, friend.

Be glad he's moving out considering all the ones who aren't.

I think there’s more to this story