So Serena basically  told Ash that she knows what hes going through and that she has been in her situation

And Ash literally yelled at her saying "You'll never understand" and "This isn't your problem"

And then Serena told him that the Ash she knew would never give up till the very end, and then threw more snowballs and said

"I can't believe this is the boy that I..."

SHE NEARLY CONFESSED

I loved this episode