1. Just moments before Komiya confesses to Usami, he was bragging about the nice legs of the woman he just slept with. He says he liked how it felt when she wrapped them around him, then bam, he tells Usami he's fallen in love with him. Yeah I know he's always been a womanizer, apparently using women to try to get over his unrequited love for Usami, but seriously wth? If he didn't sleep with everything that moved and was just honest with Usami from the start, then things would've been easier. And if he really loved him that much then why have sex with a customer from their work, when he could've just gone home with him as they are living together at this point? Surely if you finally get a chance to live with the person you love, you'd want to spend all your free time with them, instead of just hopping in to bed with others. It's not like he can even use the excuse that he was only with those women because he couldn't be with Usami, since he obviously had enough courage to confess as he does it so abruptly. So anyway that whole part really grated on me.
2. Obviously the rape annoys me too. Not the rape itself (I have read a lot of non-con, and whilst I don't like it nor do I find it hot, I don't hate it as long as it's handled well) but the aftermath is what really let me down. As a lot of other reviewers have mentioned, I had high hopes for this when Usami says he won't forgive Komiya for raping him. He ignores him and tries to avoid him by planning to quit, and it seems like the story is going to get really good, with Komiya having to desperately try to get some forgiveness. It then appears to get even better when Usami beats him up (which I really did like -- it was truly deserved and seemed a lot more realistic than most post-rape BL moments) but then all of a sudden, just because he looks at Komiya's battered face, all of his anger vanishes and he forgives him. And at that moment this manga lost it's chance of being an exceptional piece of yaoi. Instead it just joined the many other unrealistic and frustrating rape stories.