I actually had someone who questioned reality in similar way, went through a lot and maybe went too far as Yokoi with trying making up for what was lost, not doing something like he did until the end, by adding a bit salt to the sweet days so what's real must be with a little bit of hardship in a relationship.
Yokoi is embarrassed by Saitou sniffing his boxers?
My man is bag fart sniffer and wanking off in Saitou socks, you're the last one to judge lol