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Toby and Ali were once friends? Say what?!

In a recent interview with Alloy Entertainment, Keegan Allen revealed the true nature of the pre-Jenna relationship between Toby and Alison that we will be catching a glimpse of in a Season 4 premiere flashback. How well did these two know one another?

“We do have a flashback and we get to see Toby pre-Jenna, when he was actually friends with Alison,” shared Keegan. It’s hard to imagine these two as friends, but it definitely adds another level to Toby’s backstory. When Ali blackmailed Toby into taking the fall for “the Jenna thing,” she wasn’t only harassing an innocent victim, she was betraying a former friend.

Keegan teased that Toby’s storyline will delve into “deeper material” in Season 4: “Marlene King wrote this storyline for Toby that is heartbreaking on a level that is so intense I don’t think most viewers will be able to fully understand it until we get to episodes 3 and 4.” Have we mentioned we’re excited for Season 4?

What do you think the Toby/Ali flashback will reveal? And when do you think Toby and Ali stopped being friends? Let us know in the comments below!

Catch the next episode of Pretty Little Liars on Tuesday, June 11, 2013 at 8 p.m. ET/PT on ABC Family.