im rereading this and i still am not exactly sure why he trashed the diary along with the ring? he regained his memories when coming into contact with it so i would imagine he might keep it at least for sentimental reasons, but he went and said that "why keep that ring when there's nobody to give it to". he's not a manipulative person so i don't see a reason why he would've said that to hakyung either? it's not like he wanted to guilt trip him or something.