Maybe it was a mistake but I gave this person a chance to make amends over text. It was in some sense even more disappointing than the original insult where they ditched me to go see their other friend instead, in the middle of an outing together. They didn't seem to realize what I was looking for even though I spelled it out plainly. I got a perfunctory apology and then she immediately changed the subject to why she had to discuss with the friend she dumped me to see. She was justifying what she had done. At least i know that i only belong to some 'sub-human' category in her mind.