Why did Kailyn hate Briana all over again?
On Teen Mom OG Season 7 Episode 21, Briana was shocked when she got a cold shoulder from her former nemesis when she stopped by for Lincoln's birthday.
Meanwhile, Leah made a change for Gracie when she realized that therapy would be the best course of action.
Elsewhere, Cheyenne continued to question her decisions when it appeared that she was in some serious trouble.
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Paul Dailly is the Associate Editor for TV Fanatic. Follow him on Twitter.