Yes Korra was jealousy of them because she wanted to go out with Mako. Korra never wanted to be with Mako 'to be with Asami' Korra wanted to be with Mako becasue she like him. Korra did find Mako very attarctive and did in fact develop a crush on him before Asami came into Mako's life. She wanted to be with Mako in episode 3 before Asami made her appearance in episode 4. Korra did in fact had real feelings for Mako. I respect the opinion, but I completely disagree about Korra was only jealousy so she could be with Asami.
