I'm not going to deal with her crap and just ignore her
What are you trying to say what does she do?
I'm tired of her shit, she keeps talking about me in bad ways.
I understand you feel upset but it is bad to just ignore others. This will not help to solve your problem.
I'm going to ignore the crap and do my thing.
While that sounds like it may work, if this is an important friendship then trying to fix the problem would be so much better for both of you. If you're unable to do that then the friendship may be lost since you are both unhappy.