They didn’t have the communication skills needed to make an already difficult situation work, so putting them together seemed like it was done more for fan service than natural character development.
I couldn’t stand the way season two of Legend of Korra handled this short-lived love triangle. When the show ended, however, I loved where each of these characters wound up.
Before they started dating, they acted like they couldn’t stand each other. That barely changed when they got together; the only thing that changed was they kissed now.