In a perfect world where they didn't decide Korra was bi just because the fanbase wanted it and paired her up with literally her only option as far as girlfriends go, they would have waited until the comics to say she was bi and introduce a new character to be her girlfriend instead (or ideally have her stay single but W/E).

Now Korra is stuck with the world's most boring girlfriend. I'm pretty sure she would have better sex with a realdoll.