Credit: Video Still

In this preview clip of Pretty Little Liars Season 3, Episode 18: "Dead to Me" (February 5), Mona (Janel Parrish) and Spencer (Troian Bellisario) have a standoff by the lockers.

Their words are about the Academic Decathlon, but the subtext is all about "A". We could watch these two aggressively dance around the truth for days.

Check it out below.

Find more Pretty Little Liars spoilers here.

Catch the next episode of Pretty Little Liars on Tuesday, February 5, 2013 at 8 p.m. ET/PT on ABC Family