"'Cause..." Because there is, and he's still not sure she's not going to turn tail and run, just like Katniss, who's seen the absolute worst in people and still had room to be horrified. Like pretty much everyone has done, save Talia.

"It's been a while, I mean...it happened a few years ago. It - " Jason makes himself stop to take a breath that does nothing to steady him, and he hates himself a little, for scaring her when she's already been through so much on his account. "I didn't stop being Robin because I quit. I stopped because I died. Somebody killed me."