In this exclusive sneak peek, Theresa (Jessica McNamee) calls Johnny (Michael Mosley) when she gets an invite from the person who cheated on Hank and hurt him deeply — who also happens to be Theresa's college roommate.
"He's basically marrying Hank if Hank had a prettier name," Theresa says. "Is he OK?"
Watch this exclusive sneak peek to see just how Hank handles getting an invite to the wedding from his former significant other:
Sirens airs Thursdays at 10/9c on USA.