He hasn't even told her what the terrible things were; it seems a bit early for sympathy (not that he doesn't appreciate it) (but it feels strange, he can hardly remember the last time someone else had any sympathy for him)—

—her perception of minds is interestingly strange, different from how he perceives himself (tangled up and intertwined with his own thoughts in a way that dissolves the question of whether this is one mind or two, and he may be lonely but he is never ever alone)—

—he has no interest in finding out whether or not she could kill him (well, maybe a little (but he has no real taste for that kind of suicidal experiment, it's just a passing thought)); nor has he any interest in causing harm to others (he's had quite enough of that)—

—and yes, it was Tialle (the other half of the sense-memory, pain transmuting to magic, and he broke their chains and she carried him out on her back (he could not stay there any longer; he did not belong with the other Endarkened (a fact which his father made quite clear by imprisoning and torturing him for one or two thousand years)))—