Why did we marry our wives/husbands?

During the fight with momoshiki aka sakura and hinata are both there with boruto, sarada, and himawari on the ground while sasuke and naruto are fighting momoshiki. When hinata runs towards the area naruto is down at momoshiki grabs her and then he grabs sasuke and now both of them are hurt. What will happens when naruto has to make choice between his wife or his best friend/soulmate and also sakura had to make a choice. Between her best friend or her husband or does date or choose for them when sakura goes for hinata not sasuke. And what happens When they both find true love for their best friends what will happen when their kids notice this.
You will have to find out for yourself.