[When Isaac pulls back, Jack retreats, a slight pang of regret sounding in his chest, though he doesn't really understand why. He sways slightly at the loss of support, and reaches out a hand to put on Isaac's shoulder, in part to maintain contact and in part to stay standing.]

...no, that's... yeah.

[He needs help. He knows it. The echoes of the mission are clamoring in the recesses of his memory and they sound too much like Rapture right now. The interaction with the scientists didn't help at all.]

I need help convincing myself I'm a human being, not... [He swallows, and can't meet Isaac's eyes.] ...a killing machine. Or a monster. Or whatever.