We're speeding towards the end of Pretty Little Liars Season 4, and things aren't looking good for Ezria. However, despite Ezra's painful betrayal of Aria, this week's Season 4, Episode 20 (“Free Fall”) also had a callback to an important number from Ezria's past: B-26.

As devoted fans of the pair know, this number came up a lot in the first season, and for today's Flashback Friday, we're taking you back to Season 1, Episode 10 to remind you why it matters that B-26 was Ezra's password at the cabin.

The number is a reference to the song that Aria and Ezra bonded over when they first met at the bar. Later, Ezra wrote and published a poem called "B-26," about Aria. Aria finally read that poem in Season 1, Episode 10.

At the time, Ezra had pushed Aria away, due to that whole being her way older teacher thing (and maybe also because he felt bad about, you know, totally using her for his book?). When Aria found the poem, she confronted him, calling him out on the fact that he really did love her.

You can watch that dramatic moment here!

Do you think Ezria is over, or is there still hope for the relationship? Is the fact that Ezra used B-26 as his password proof that he really does love Aria? Let us know in the comments below!

Catch the next episode of Pretty Little Liars Season 4 on Tuesday, February 25, 2014 at 8 p.m. ET 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+!