Whitney's excitement about her dance-a-thon takes a dark turn when she realizes that her body is not as healthy as she thinks; Buddy reveals his new girlfriend and Whitney doesn't know how to react.
Whitney's rushed to the hospital from the dance-a-thon, but even her doctor can't scare her into making a big change; a trip to the snow turns disastrous.
Whitney takes a break from dancing after receiving grim news from a cardiologist, but soon learns that one of her fellow big girls is trying to hijack her class
Whitney wants Lennie to move in with her, but a couples' game night foreshadows a reality that she hadn't considered; Whitney does poorly in an interview for a radio job.
Whitney hangs out with transgender friend Mattie, only to find she's been withholding something; Whitney gives trainer Will excuses for her gym absences; Whitney stalks Lennie after he cuts off communication.
Between her parents' birthday party and Will's criticism of her diet, Whitney is feeling stressed; a comedian targets fat people while Whitney is working at the radio station.
Whitney gets a chance to make a dance DVD, but her reputation is at stake when her backup dancers fail; Will is fed up with Whitney's lack of commitment; Glenn threatens to get rid of Allister.
Despite her trainer leaving, Whitney must get her life together in time for the ballroom competition in Charlotte, N.C.; a surprise in Whitney's love catches everyone off guard.
Whitney and the cast dish on the past season, from Whitney's feelings about the funeral intervention to her fight with Caitie; Lennie and Whitney meet for the first time since breaking up.
Lennie and Whitney talk for the first time since breaking up; Whitney finally confesses her true feelings about Roy; sparks fly when Whitney confronts her nemesis, comedian Kerryn Feehan.