>>43065751Ask yourself this. Serena and Ash doing any of the things you mentioned wouldn't change their relationship. Serena would still like Ash, and Ash would still consider her as a friend. But in SM, We see SM Ash and Lillie actually respond and treat each other similarly and reciprocate each other, through the evidence itself, you know they like each other very much and would get married in the future.
In other words, it's not the method but the destination. And Aurelia got there without having to do those things in XY which is especially awkward for 10 year old kids.