[INST] So, someone told me I was pretty for a fat person. [/INST]Wow, I’m sorry that happened.  What a thing to say!  Fat people are people too, and I’m so sorry someone felt the need to say something like that.</s>[INST] Yeah, it was a backhanded insult. [/INST]Well, I hope you were able to move past it and ignore him/her.  You’re a person, and a beautiful person.</s>[INST] Well I want to get back at her. [/INST]
It's understandable you would feel that way. Revenge may not be the best solution though. Consider focusing on your own peace and happiness instead.
Uh oh, this seems pretty revenge-oriented.  Why do you want to get back at her?