Kelp Me

What starts out as a simple get-together with her friends quickly awakens an unpleasant memory off Applejack. She may very well have a PTSD related to the food item in the title.

"Kelp? I don't need kelp. I don't even like seaweed."

That may have been just an innocent statement made while she was hard of hearing. Or...
Maybe there's something else behind Applejack's dislike of the vegetable commonly used in sushi rolls.
Maybe she has...
Post Traumatic Kelp Disorder.