Another mystery title please

So here I am again with my questions and descriptions. hehehe. I'm trying to look for this yaoi, I think I read it 2 years ago. If I'm not mistaken it's a one shot (with one or two chapters). My memory is kinda vague since I've read it for so long already. The start of the story is that they are attending a burial (the father of the seme). then there's this uke who took custody of the uke ( take not the uke is a full grown man, not an underage). the seme despises the uke because he thinks he's been sleeping with his father so he raped the uke in front of the "altar" of his dead father in their house. I'm not so sure but I think the seme has lost some memories when he was a child and forgot that the three of them (his late father, seme and uke) lived together for a long time and the uke stood by their side as his mother.

Oh yeah, I remembered. I think the seme despises the uke because he thinks he's the reason his mother and his father broke up but.

In the end someone (a relative, I think aunt) told the seme a story of their past.
He cried, asked forgiveness to the uke, and declared that he was in love with him and was jealous of his father. the uke revealed in the end that he has been in love with the seme for a very long time hoping he wold remember the past.

I think this was inserted to some series yaoi and not a separate/ independent yaoi.

Can some godly yaoi fangirl find this mystery I've been searchingggg?? Σ(っ°Д °;)っ