I think like, Feiyn *could* like him, but I have a feeling that she’d be like… the epitome of like, the most annoying traits he hates in a single adventurer. 

1) she’s so bubbly it’s annoying

2) she’s smart but does dumb shit

3) despite having the experience to properly plan out a strategy, she often just goes out into a battle counting on her skill and luck to win

and other such things. BUT I think if there’d be anything he’d appreciate about her, it’s that for the the most part, she pretty much utterly *punishes* her opponent in combat.