So this scene right here shows A LOT about Bolin’s feelings for Korra. Look at his body language. He looks defeated. He knew how both Korra and his brother felt about one another, he knew.
I’ve been agreeing with everyone’s posts for a while now that Bolin is being the bigger man in not actively pursuing Korra in a romantic manner. But that he still cares about her as greatly as he did in episode 5.
This scene just really seems to show how mature he can really be. Regardless of his age. I really don’t agree with the idea that his feelings towards Korra were simply “a 16 year old boy liking a girl, it’s nothing”
Bolin is more mature than most think. Hopefully we can just see how mature in Book 2.