Jace Walks in On Clary & Simon on Tonight's 'Shadowhunters'

Things are about to get a little awkward on Shadowhunters.

In this new sneak peek, Jace (Dominic Sherwood) walks in on Clary (Katherine McNamara) and Simon (Alberto Rosende) getting…um, cozy.

Meanwhile, in the rest of the episode, titled “Bound By Blood,” with word getting out that Clary is a key part of Valentine’s plan, the Downworlders are at odds on how to handle the issue.

But when Iris activates her blood oath, Clary has more to worry about than hiding from Valentine and the Downworlders.

Isabelle (Emeraude Toubia) and Raphael get closer as Alec (Matthew Daddario) tries to figure out what’s going on with his sister.

Shadowhunters airs TONIGHT, February 27 @ 8PM on Freeform.