Nothing wrong with not living together.

But I am somewhat surprised that at age 30 he wants to live with his parents. It’s quite unusual.

I have a daughter that age and she has zero interest living with parents. Both my nephews lived at home while attending college but were immediately on their own when were close to done. Ton of other young people are the same way (some would have roommates, not necessarily living alone)

I understand financially it’s comfortable to live rent free but most young people value independence way more and would go out of the way to not live at home. Sure at 20, but not at 30.

I’d be rather taken aback if I had a boyfriend who did that. In my dating years I don’t recall any men who did that. I’d possibly feel resentful that while he lived in his apartment you financially helped him by giving money for rent and bills even though you didn’t live there. And now he moves in with people who’d again help with bills but probably more than you did.

I’d feel somewhat taken advantage of. Isn’t it a guy who wanted to put his car on your insurance and create joined accounts even though you aren’t married and not cohabiting?

I personally would wonder if he is the right long term partner for me. Too many red flags.