Leah breaks down when a doctor's visit reveals that there's something wrong with one of the twins and she turns to Corey for comfort, while Chelsea starts hanging out with her ex-boyfriend Adam again, much to her friends' dismay. Kailyn starts dating a new guy but things go haywire when Jo and his family find out about it, and Jenelle convinces her mom to let her come 집 when she realizes how much she misses Jace.
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