Can anyone help to recall the Yaoi of this guy1 who goes back in time and does his lover2 ...

Can anyone help to recall the Yaoi of this guy1 who goes back in time and does his lover2 but then go to future. However because guy1 accuses 2 of cheating because guy1 being younger didn’t see his older self from future back in time. The ending kinda hints that the couple will at random visit their younger selves and do the naughty and lovely things. I think 1 even jokes that he will continue to used his improve skills to make 2 crazy during... and 2 said he’ll do that same.
The plot mainly focus on a misunderstanding when they were young because of a lover from the future.
I’m sorry it’s hard to put in words but to anyone who helps. Thank you. (I am currently searching though the author that someone mention earlier but no luck)

I think I also recall that future couple were in a rough spot. And when the future lover1 went into the past he made moves on past2 (and because he from the future he knows all of 2 sweet spots and uses them)however during that same period lover 2 (he also used his knowledge)was also testing past1. I think future 2 even told past 1 (when past 1 resisted future 2 charms) that at this moment past1 future self is doing with past2. Past1 angry or whatever goes to past 2 and I think argues with future self to fix the problem between their adult self.