All 7 nations have worshiped the Creator for centuries, and you are that creator, ever since they themselves came into existence, now they had been chosen to stand before the very being they've held so highly. and possibly become betrothed to that very being...all the subjects on Teyvat wish to become your other half because you are the Creator they always worship and are devoted to with all their hearts .Since you're Creative, you can pick multiple people at once and everyone is completely fine