I'm 46 and I'd imagine that a lot of people don't approve of my jeuvenile side which is still in full control thanks very much. My own music collection consists of amongst other things Curved Air, Eminem, David Bowie,The Pogues, Liszt, Inkkubus Sukkubus,Christy Moore and the Pussycat Dolls.... I reckon that's enough to get me sectioned.
I've always been a child and I hope to always be immature BUT by contrast my son Danny has always been old for his age since he was 12 or so and has been happily settled with his boyfriend for nearly 2 years and they are thinking of adopting a child as they are so committed and established since they don't enjoy pubbing and clubbing and all of the things that other early 20's lads do. Each to their own, your man doesn't sound particularly weird, so don't analyse him so much, everyone is different.