I literally wrote a whole paragraph and it wont let me copy and paste ;-;
Answer: The Grocery store is the defendant
Explanation: A defendant is someone, company or an organisation being sued or accused of comiting a crime and is charged to court to defend his or herself, in the case of an organization or company being charged to court needs to defend and absorb itself of all crime.
In the case of Adrianna, the grocery store being the defendant needs to defend itself in court against Adrianna's claims and prove that it's not guilty of her claims. If found guilty the grocery store will pay for damages, her hospital bills and injuries the fall might have caused.
She just wants to be the best on everything, and feels bad if she gets something wrong, and probably gets embarrassed. She thinks that she has to be perfect, and always wants to have something in return.