I am pretty sure that my best friend of 6 years was an INTP. She was undoubtedly the wittiest and most humorous person i had come across. We were joined at hips...btw at that time i believe i was an ESFP. Anyway there were times when she would laugh and make jokes on me....they might have been pretty cold but i never took them seriusly///but later on when we were no longer friends, i realized that of the various reasons present, she was one of the reasons for my low confidence and self esteem. She would make me feel bad without knowing it. However she was a very empathetic friend. I don't think what she did, she did on purpose. However after our fall out she did not try to get back even though i did. And anyway i suggest you break your friendship with this person... but be ready for a helluva argument. They are very capable of making you agree with them in an argument!
all the best!