Its not lol hes simply stating a fact ML in a pervious chapter as to be brothers but he keeps showing more intent then that so MC decided to just straight up say u wanna be my lover ML never gave a true reply but kept showing Lover tendencies. So it went without saying but in this chapter it is made clear! Finally! That ML did not want to be brothers either he always admired him but now its far more than that he grows jealous and he alrwady knows there not brothers and now cant view him as one because he has admited to himself at least theres A Need a want that was never satisfied until now to not let Alyosha be with anyone else but him
Oh it's just that I read the entire thing in one sit, so I'm talking about everything in general not just the recent episode. But the fact that one of them genuinely believed they were brothers and the other one practically raised him... That's the weird part for me, I get they weren't raised in a 'normal' environment... netherless I found it odd.
But what a fucking odd way to talk, and PREDATORY!! " Oh, brother! , this is no what family do, I used to change his diapers, now he has his dick up in my ass" BROTHERS CHILL!!