'Pretty Little Liars': Melissa's return, Kate's first day at Rosewood High
What Hanna doesn't know, of course, is that it's because they went behind her back to keep working with Caleb. We're sure she'll be thrilled to find out.
And then on the Monday, Feb. 20 episode - Melissa's back and she's very pregnant. The episode description for "Breaking the Code" says that "a surprising new victim of 'A' is revealed ... the PLLs tight-knit group may just get one person larger."
Is it Melissa? We wonder. "Pretty Little Liars" airs Monday nights at 8 p.m. ET/PT on ABC Family.