[ He still looks puzzled, like he can't reconcile the two things that Naruto is saying: the desire to return home, and the ability to make peace with living here. Maybe it's a level of maturity that Bolin has yet to achieve, or just something more enduring in Naruto, more positive and forward thinking.

But he wants to understand, so he keeps questioning. ]

It's one thing to make the best of your time here, though. But would that be good enough? Would you try to do everything in your power to get back? [ And most importantly: ] When would you stop trying?

[ Bolin has resolved himself to be less estranged with this place—it isn't in his character to carry himself separately from the general populace anyway, and his behaviour hadn't matched the words he claimed to describe his feelings for Enprise. His heart's too warm to keep his life here at a distance.

But the idea that he could settle here, as much as he knows it might be futile to remain fixated on getting home, makes him feel like he's abandoning his brother. Him and Mako may have gone in separate directions during the time that Korra was recovering, seeing each other less and less, but he doesn't know how to settle for a life without his brother. ]