It's about a guy(uke) that works as a waiter and likes to seduce men only to turn them down out of vengeance. He meets his next target but the guy is actually hunting him as well.
I'm pretty sure it's Oshiete ookami-san
Thank you <3
So it was about a uke in highschool that felt guilty about something that hurt the seme and he started to take care him and then they split for some reason. Years later the seme shows at his house looking for a place to stay and basically wants him back.
http://www.mangago.zone/read-manga/mujintou_ni_motte_iku_nara/