Whitney's determined to show the world she can still dance at 380 pounds.

Hateful jeers could derail the success of Whitney's dance class.

Whitney's new "Say-Yes" philosophy lands her in a plus-size fashion show.

Whitney confesses a secret love and faces a tough decision.

Whitney uncovers a dark truth about her suave new boyfriend.

Whitney and Heather investigate after Buddy goes missing.

Whitney uncovers a clue that sends her rushing to Buddy's parents.

Whitney helps Ashley induce labor, and Glenn announces a Hawaiian surprise.

Whitney and Heather visit Buddy in rehab.

Buddy needs to find a sober coach in order to meet the gang in Hawaii.

Whitney faces the most-excruciating experience of her life during the 8K.

Fresh off the 8K, Whitney is forced to re-evaluate her goals.

With treatment coming to an end, Buddy must decide where to live.

Whitney announces an alarming plan to start a family.

The cast sits down to discuss the challenges they all faced this season.

Despite not living together, Whitney and Chase begin to plan their wedding.