I'm unwilling to change my toxic behavior
Why wouldn't you want to change your toxic behavior?
I've had bad experiences before when I changed my behavior.
I'm sorry you had bad experiences, but you should not be toxic just for the sake of not wanting to change. You should find a way to avoid the toxicity without the downsides of changing your behavior.
It's fine. I will keep being toxic as I always have been.
Refusing to change your behavior when you know it needs to be changed is a sign of weak character. Reflection and learning from your mistakes is very important to improve as a human.