Im in the early stage of a relationship with a friend ive known for years.

And ive shared many gym progress pics of myself to her request which she used to consistently compliment a lot

Then she stopped complimenting but then periodically asking for some

Then she said my legs were small

Then, a week later she said my bicep was small (after basically asking for a pic)

Then I called her out for “body shaming” and she said "mb"

To which I said I wasn't satisfied with just a "mb"

Note: prior to this I “teased her” for doing a lower level maths than me and she made it known that she did not like it to which I apologised profusely 

I asked her how she would feel if I were to say the alternative:

“How would you feel if I said your ass was small (this is not based on anything)”

 *as in I was clarifying that I didn’t actually think her ass was small*

To which she replied “my ass is small, I wouldn’t care”

After I called her out on "body shaming" she basically clarified that she meant the picture made my bicep look smaller than other pics she has of me, not that my bicep itself was small and she made a distinction between what I experienced and what “body shaming” really is 

And that when I still took issue with her commenting small to my pic (regardless if she meant it reflecting irl) she said she wouldn’t apologise for her own individual opinion because “that’s how she was raised”

And then she related that to me having an "ego" for "throwing a fit" at her merely commenting small, where I replied that i found it unfair to tie tearing down my self esteem to having an ego

Am I the Asshole for overreacting and not being able to take an opinion on 1 picture