I haven't even really thought about her in 15 years, we used to be very close growing up, but she used to taunt me about my sibling having aspergers so contact was broken. It's not funny to me as I know the difficulties they face.
The only reason I thought about it this morning was that I saw a pic of us on our 18th with other friends (still in contact with them) and suddenly felt furious about how awful she was. Bit of a delayed response!