Annie, if I feed too much I will drown. [ he will forget the value of life. Be like Rize. because it's feels so good to eat. ] I deal in absolutes because I only have absolutes. If I feed to much, I'll get addicted to it and become like Rize - if I don't eat enough, I will feel like I'm dying over and over again until I just let instinct take over. I'm not good at being... this. I don't know how to be this.

[ he can't just feed more. he doesn't have that self control, his kagune is incredibly unruly and seems to have a life on his own, his hunger far too crazy and he is plagued by Rize as he fights to keep his humanity.

He wishes it was simple. he wishes he wasn't half ghoul. But this is how he deals, and he still hasn't found any other way to deal. he will find it, after he gets tortured

The hand that reaches for him causes Kaneki to go silent, though, looking back at Annie before his eyes fall to the ground ]

... I do regret bringing you into this. [ but she'd get it, she'd find out things by herself and it'd be so much worse ]

... thank you. [ for still talking to him. ]