[spoiler][m]

I wanna know this manga so bad. So I've read this manga way back 2022, yaoi. There's a scene in it where the uke wants leave seme because he figured(conclusion) that the seme doesn't really love him, of course the seme was playing it cool at first. The scene was like he was telling the seme about the key to their house/apartment and when he was about to head out the door, the seme stop him from hugging him from behind. Plsssssss I need to re-read.

P.s if i remember it right, I think their relationship started of as pure physical (I think there is a blackmailing involved—BUT I'M NOT SO SURE) They did had a relationship later on, but the seme didn't pay attention that much, that's why uke wants to leave

Is it the ‘Origin of species’?