How should i handle this conflict?

I was in a relationship with a guy back in november 08, got pregnant,(by accident obviously) Found out the BD(Baby Daddy) was ******* a girl i know and work with. Lost the baby, discontinueed any contact with him or her. Was hurt from everything that happen, but moved on. I still work with this gil, and still feel bitter feelings towards her, but i don't engage on any of the anger. Friday while minding my business it came to my attention that someone had keyed her car, and she called the police and told them it was me. I didn't do it, i wish i did but i didn't. It's been bout 9 months, i lost a child, i very much wanted, i don't have time for childish ****. Don't care for it, I'm just wondering since i work with her and i'm sure there is going be confrontation how should i handle it. kick her ***, continue ignoring you, report her for slandering my name with false statements, i mean what i want this to be over already. . . . .i really want to kick her ***. . .