Credit: Video Still

There are a thousand and one reasons we're excited that Alison (Sasha Pieterse) is probably alive on Pretty Little Liars, but the possibility of seeing her interact with the Liars again is #1 on that list. Through flashbacks, we've been given a tantalizing taste of the friendships that were, and we'd love to see how Ali would react to the strong women the Liars have grown into.

Perhaps the most fascinating relationship of all is the one between Ali and Emily (Shay Mitchell). Back when Ali was alive, a still-closeted Em was clearly head-over-heels for the Queen of Mean, but we have a feeling things will be very different if they meet again. After all, Em has been in two solid, deep, loving relationships since Ali, and she's firmly in love with Paige right now. It's hard to think of the Em we know as the same girl who was under Ali's spell.

For today's flashback Friday clip, we've decided to take a look way back at the girl Em once was, with a flashback scene from Season 1, Episode 9. Which scene? Oh, just the one where Ali and Em share a kiss in the library. No big deal or anything. (Sadly, if you ask Ali, it really was no big deal, as you can also see in the video below. Seriously cruel, Ali. Not cool.)

Relive the memories below!

Find more Pretty Little Liars spoilers here.

Catch the Pretty Little Liars Season 4 Halloween special on Tuesday, October 22, 2013 at 8 p.m. ET/PT on ABC Family.

Rebecca Martin is an Associate Editor at Wetpaint Entertainment and our resident Game of Thrones, Breaking Bad, and genre TV expert. Follow her on Twitter and Google+!