Responses

Sounds like the manga "You Own my All" but in that uke dies while saving the seme (uke's husband who mistreated and ignored the uke all his life) and then the seme jumps off a cliff while holding uke's body. Then he wakes up and the rest of the story goes as you've written minus the killing part. Do give it a try if yoy haven't read it already :)
It would be so good if the uke died and then the seme killed himself coz he couldn't live without uke. Then after that, seme will wake up and realize that he went back in time before he met uke. This time around, he wouldn't be such a scum anymore, treat the uke right, treasure and love him, and kill all the people who hurt him. LOL if only right? ( ̄∇ ̄")