[Bolin absently rubs the pads of his fingers back and forth across the knuckles of one hand. If they were anyplace else, he might've accepted Korra's answer at face value and dropped the subject, but they're not anyplace else. And they're not surrounded by people they know, people they've been through so much with in such a short period of time. For all intents and purposes, they've only got each other. And that changes everything.]

Korra...

[He keeps his eyes trained on her face.]

I'll be the first to admit you can't just hit the ground running here. There's a lot to wrap your head around, and there's a lot to worry about. Trust me, I get it. I know. But-

[His fingers cease their movements. He has to work to keep both hands right where they are.]

Promise you won't run away from me. Promise you won't close yourself off. [the way you are now.]