I am not an expert but did find some information you can read.

1) http://cats.about.com/cs/behaviorali...bite_scrat.htm

2) http://www.perfectpaws.com/agg.html

If you google "domestic feline aggression problems" there are many sites with information.

Hang in there for Lilbits sake. Don't give up on your pussycat because you will figure out her 'trigger' and solve the problem.

Biting her ear: Hmmmm. I think if someone bit my ear it would just make me more aggressive because I would interprete it as an act of aggression or a challenge. Lilbits might feel that way too.

Wish I had an instant solution for Lilbits' aggression.

Susan