Is another affair about to go down on The Affair?!

Pretty Little Liars' Miranda Rae Mayo is set to join The Affair (aka one of our latest TV obsessions!) when it returns for its second season in the fall, E! News has exclusively learned. And she's playing a new love interest for one of the Showtime drama's leading men: Joshua Jackson!

Mayo is set to play Luisa, Cole's independent and free spirited new love interest, who illegally emigrated from Ecuador as a child and is working her way through school. And it doesn't seem like this is a casual fling, as Mayo is set to appear in at least five episodes of the Golden Globe-winning series' sophomore season.

So it looks like Cole and Alison's (Ruth Wilson) relationship really is done. And sorry to all of the fans rooting for a hookup to go down between Cole and Helen (Maura Tierney)!