What'd be a good storyline for Bayley is recreating Spike and Molly Holly relationship storyline.
Bayley can play the shy/awkward girl well
I'm surprised that we haven't seen a Bayley/Zayn on-screen romance since they're basically the same character, but now that he's on Smackdown...
I imagine they'd blow the roof off with a Bayley/Balor tease. Like, allude to the possibility with him saving her and build the tension innocently.
He could friend-zone her in the end, but have the girls in the crowd on edge begging for it. Cool, handsome, mysterious-looking, nerdy guy with a nerdy girl that's a fan would have the chick fans creaming in their seats and typing fan fics on tumblr.