Totes in the dark about Pete = Spider-Man, because Korra would totally be that tough chick that stands up for Pete if they were in school. Spider-Man on the other hand is like seasoned pro so she gets to let him handle the big stuff. Korra wants to give Peter noogies and toughen him up a little because omg-scrawny, eat bigger meals boy. Spidey on the other hand is all kinds of awesome to her and she likes his lol-baddies-whatevs attitude. That whole secret identity thing though is just so pointless to her, but she knows not to bring it up anymore.

Pete = nice guy nerd
Spidey = badass hero

He better not be making that webbing from his butt. Srsly.