I love this question so much.
In all honesty, no I couldn’t anymore. I can honestly say that one of the single most attractive traits in a male is their love for Allah. If you know they love Allah, you know they have a good heart (not in any way saying non Muslims don’t have a good heart obviously, of course they do) and will inshaAllah treat you the way Allah expects them to, so the rest of my expectations should be met. So no, I don’t think I could fall for someone who isn’t, and if I were to he would have to be someone pretty damn special and be willing to try my beautiful religion. I mess up an awful lot but I love Allah, and I need someone who can understand that love.
In terms of have I ever before, yes I have but it wasn’t serious, I wasn’t serious, and I didn’t love and identify with my religion as much back then. Also I don’t think I fell for them if we’re using the definition of “fell for” I think of now.