Two girls go figure

Question I am asking after you read the story is why would sandy (a chunky girl ) tell mary (a thin girl who is always told by strangers, relatives, friends she is thin/skinny, looks like a size 4) that sandy thinks mary is average and size 8, then pauses and adds in size 10.

Mary and sandy were in the hallway talking.
Mary: “sandy I parked right across the street today”
Sandy: don’t you think you should exercise instead of parking so close”
Then they parted company, but mary was upset so she went to seek out sandy

Mary: “sandy why did you say I should exercise”
Sandy: “because of the heart”
Mary: “sandy do you think I am thin”
Sandy: “you are average, size 8” paused and added “size 10“

Mary left and went back to her desk. Four co-workers saw mary and asked mary what was wrong mary told them what sandy said.

Her co-workers said to her: “mary you are thin/skinny and cannot be more than a size 4, and not more than 110 pounds”
Mary: “so why did sandy say average and size 10 if everyone sees me as skinny/thin size 4”
They replied: “have you ever heard of jealousy”

Keep in mind people out of the blue will tell mary she is so lucky she is skinny and cannot be more than a size 4.

jaz, she is stacey but today she is mary. I think this person has bi-polar a mental condition. She is paranoid and picks to peices everything that people say to her. jaz this will go on and on until she deletes her account.

Go ahead and say you thought this wasnt helpful... I expect the 0% on my advice. I know what your like.

so are you saying that your mary then?!
probably because people vcan be kind and cruel at the same time
almost everyone has an issue with there body and weight
perfectly healthy people think there overweight
skinny people think there overweight
overweight people think there even more overweight
and in a lot of the cases.
theres absolutly NOTHING wrong with there weight
...dont take these things to heart ok

I think that sandy is just trying to put mary down because she is a bit jealous. shes trying to make her feel bad.