What's up with manga characters and the idea that you need to know someone to love them
You kinda do, though? Otherwise it isn't really
them that you love, just the
idea you have of them or just their appearance. You dunno their actual interests, how they are when not in public, and the list could go on.
That isn't to say that you have to like or know
everything about your partner, just that if you don't even know anything besides that one thing about them that caught your eye, can you really call it love?