No, Ryu went berserk on someone because they were brutally killing children so. :| Definitely not a fan of sociopaths either.

Fortunately for everyone, Nina has mostly convinced him to keep wearing it.

Ah, okay. It's been a while since I've watched and... as I said, I haven't kept up. But yeah, I imagine they would - Ryu's stated to have nightmares and strange dreams in the manga, so I go with that too. They can bond over it idk.