Is AUTHOR wrong in the post ? POST : Using a throwaway since I moderate a few other subs. 

A few years ago I ran in a marathon close by my hometown. I ran the mini-marathon which I think was 5k. My tshirt says marathon, my finishers medal says marathon as does my beer glass they gave me. To me, I ran a marathon. I'm a good athlete but in things like yoga and horseback riding and running this race about killed me and I want the credit. I'm a marathoner.

I went to a party last night with my sister (who I don't get along with very well at all) who runs like 100mile races in California and I was talking with her friends about my marathon finish and she got so mad at me. She told me that I didn't run a marathon. I told her I have the Tshirt to prove it. She always goes back to insulting my appearance and I won't say what she said here but it was along the lines of "you're a f@t asshole, not only in this situation but all situations and this is why we don't speak!"

Am an asshole for this? 