Now we are adults & guess which one of us has found/created emotionally fulfilling & supportive relationships & which one does not connect with other people much at all.
Seriously, I am angry over the treatment I didn't deserve, but I would not swap places with my sister for *anything*.
[Caveat: making friends can be hard for a multitude of reasons. Not having friends is not proof you are unkind, but unkind people often struggle to make friends, especially good ones, for obvious reasons].