Every Pretty Little Liars fan is wondering when Spencer (Troian Bellisario) will find out Toby (Keegan Allen) is part of the "A" team — and exactly how much she'll flip out when she does. 

Wetpaint Entertainment recently took part in a conference call with showrunner Marlene King, and she dropped a hint about when Spencer may discover the truth about the man she loves.

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When asked if Spencer is going to beat herself up after she finds out about Toby, Marlene replied, "Yes. In fact, I directed my first episode this coming season, and it's the third episode in [Season 3, Episode 16: "Misery Loves Company"] and there's a lot of deep, deep emotion that begins with that episode, and then it carries all throughout the rest of the season."

She added, "It's just so powerful, and so gut wrenching, and Troian Bellisario (Spencer) did such an amazing job for us this year. We're really excited to share her story with the fans."

What we find notable is the hint here that Spencer finds out about Toby in Episode 16. We know that one of the Liars will definitely find out the truth that week. Is this a hint that it's Spencer? Or that whoever finds out tells Spencer right away?

Maybe another Liar starts to suspect, tells Spencer, and Spencer spends a few weeks questioning and investigating herself...

Whatever happens, we can't wait to watch!

Find more Pretty Little Liars spoilers here.

Catch the return of PLL Season 3 on Tuesday, January 8, 2013 at 8 p.m. ET/PT on ABC Family.

Rebecca Martin is an editor at Wetpaint Entertainment. Follow her on Twitter @BeccaDMartin.