Credit: Video Still

The Liars have had to deal with some heavy stuff in the past on Pretty Little Liars, but Aria (Lucy Hale) is facing a whole new level of difficulty now that her dad is a suspect in Alison's (Sasha Pieterse) murder.   

In this sneak peek of Season 3, Episode 16: "Misery Loves Company" (January 22), the girls wonder if they can trust Meredith, and Aria makes a bold statement about Byron (Chad Lowe): If he was involved in Ali's death, she won't keep it a secret.

Wow. Talk about a hard decision. Check it out below.

Credit: YouTube Photo: Pretty Little Liars Season 3, Episode 16 Sneak Peek: Would Aria Turn Byron In? (VIDEO)

Find more Pretty Little Liars spoilers here.

Catch the next episode of Pretty Little Liars on Tuesday, January 22, 2013 at 8 p.m. ET/PT on ABC Family.

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