@A-10-Warthog i mean, i wouldn't mind the idea of Hailey and Nathan making peace with one another in a distant future, but Nathan is already with Ayumi, and i think it would be really troublesome for the author to just retcon Ayumi all together just to make Hailey Nathan's gf
But i do think that at the moment Ayumi is a bit of a flat character, we know her too little, seen her for only a few chapters and haven't seen much of her character till now. Maybe the author could explore on her a bit more. But im pretty sure Nathan and Hailey won't be a thing, like ... Ever ..