After a doctor's visit, Arthur learns he's under high stress due to Valentine's Day approaching. To de-stress, Arthur suggests his concerns to Camille and asks if they can take a break from the holiday which causes them to fight. He shows up at Lena ... (more)and Martin's house, where they help by taking him in. Meanwhile, Maya and Camille express disapproval when Lena decides she wants to cook a platonic Valentine's Day dinner for Martin at home. Elsewhere, Mason organizes a Valentine's Day flash mob for his girlfriend.