This is a bit specific but any yaoi/shounen ai where there’s body swap between a guy and a girl, and the IRL guy ends up falling for a guy?
Omg I've read a fanfiction like that and I loved it. If there is a yaoi like that I'd cry tears of joy
http://www.mangago.zone/read-manga/joshi_bl/mf/c005/ This one is like that but the guys are together already
Manga/manhwa where the uke becomes apathetic and emotionless towards seme, even when in bed, and seme goes crazy trying to fix things- bonus points if uke is unresponsive in bed and it drives seme crazy