Looking for Yaoi Manga

I am Looking for a manga the i read a while back but somehow forgot to add to my list. Its about a guy who kidnaps a man who he likes and keeps him but then the guys starts to like the kidnapper back. The kidnapper feels bad about it so he lets him go and the guy that was kidnaped finds out the kidnapper was abducted when he was a child and was kept there intell the man died so he stayed in the house because he didn't know what to do so at the end he tries to kill him self and the man he kidnapped saves him and they start going out?