When I read that Zoe had a beef with Lux, I thought it'd be a far more substantial one than a crush.
I usually just stick with whatever Riot decides to dish out in terms of lore and character building, but boy was watching that video a drag. I've spent 3-4 minutes listening to Zoe blabbing about hating on Lux and liking Ezreal.
Zoe is basically a miniversion of Hermes who seemed to hate on Lux over something, so I was excited to learn more about her and see what cool interactions she has with the world, but so far she seems extremely centric about being thirsty over Ezreal...I don't know, maybe I'm getting a bit old and cranky after all.
or 
She does have a lot of lines centered around Ez and Lux but you won't hear all those lines throughout the game, if you even notice them :P
They'll probably play during a teamfight and too much will be going on for you to notice Zoe fangirling over Ez or sassing Lux
