Eventually they caused me so much hurt it wasn't worth continuing the friendship anymore.

When I was around 15, I used to wear this little tartan skirt that I really adored and I wore it on many occasions out in public without any comments from anyone. Until I went out with my two best friends who deemed it too "inappropriate" to be seen in public and said that I wasn't allowed to wear it again with them around, because they were too ashamed to be friends with a girl in a "slut" skirt. This behaviour continued on many occasions with different clothing and attitudes that I had towards sexuality. Eventually they caused me so much hurt it wasn't worth continuing the friendship anymore.