had KK and was reraised preflop another 2 times in the last 2 days...

Both times it was AA that reraised me.

One was against a fishy enough player that I thought she might have a much worse hand, and I lost $200 to stupidly playing the hand just because I knew that she was a bad player.

MMT, SnG, 6-Max, <100NL i can see not folding KK preflop...

but at 100NL+ full ring, never folding is -EV...