Ick I forgot the main guy committed incest. Yk, the author didn't have to put that into the story but of course they did. Do they not realise how gross that is?
Well... one of the parties never saw the other as a brother. I don't know... there must be a limit where even if one person is the "active one" they are still victims of manipulation. It seems like the blondie, had a crush on him, and used the MCs feelings against him, as well as his guilt. I also think that there was an implication that many a times, they slept together because the MC was drunk.
He's still not worth the hassle, I don't see why he just keeps chasing him
He been dickmatized nothing can make him see how dumb he looks he a victims of dickmitization now