Responses
I agree since the mc has already shown that he is capable of setting boundaries with people he doesn't like (as shown with the guy) so him letting it get to here could be that he also likes it/him(?)
Exactly and from how it went, the MC was totally expecting and wanting the other guy to do him.
About the grape thing, since this is the perspective of the MC, then I don't think that's considered graped. He led the guy to do that to him and he was well aware of what is happening. Now the issue with the ML asking was it really grape, tbh it did sound bad, especially if someone really did experienced that, however, considering how the ML knows what kind of person the MC is (a person who likes to get banged) then that question is concluded to be valid! Finally, the issue with the ML being nosy and the MC being a pushover, well it's true LMAO, it's because they're catching feelings obviously. The ML gets jealous and the MC tolerates (being pushed around) the ML's behavior because they like each other!
And! I'm saying this in advance because I have a feeling someone will disagree. This is just my opinion. I'm pretty confident with my comprehension skills as well, the reason why we have different opinion on this manhwa is because my view on this is skewed. So let's go on our merry ways and not bother with each other, yeah?