Ever since she spotted a painful bruise on his bod and a large bag of pills in his bookbag, Aria Montgomery began suspecting that her childhood bestie Holden Strauss was not only hiding a secret but a dark and dangerous secret at that! Holden assured Aria at Truth Day that she didn’t need to worry and proved that he had the makings of a loyal friend (and hero) when he rescued her from Noel Kahn on the Rosewood High rooftop!

Well, this week Holden finally opens up to Aria and reveals to her that he participates in a martial arts called “Tang Soo Do.” His parents forbid him from competing but Holden apparently continues to train against their wishes. However, Aria isn’t buying his story at all. (Based on what Shane Coffey revealed to us earlier this week, we aren’t either!)Check out the Pretty Little Liars Preview from Season 2, Episode 20 below for the full conversation!

Do you think that Holden is lying to Aria? What do you think he’s really hiding? Leave your predictions based on this Pretty Little Liars preview below, and tune in for all new episodes every Monday night at 8/7c on ABC Family!