I have resting awkward face.
You'd think Kaneki would put two and two together lol. In his defense - admittedly a weak one lol -, he probably took what Itori said about ghoul mothers as gospel truth (that and the whole 'being busy with OEK stuff' thing). Why, after confirming his suspicions, he didn't talk to her, I wonder? (besides plot reasons) Maybe it’s related to him going somewhere...? Touka, even after reading the letter, should be safe for now. I mean she doesn't have any info about the letter (1)