I though she was my friend please read?

I knew this girl for 15 years we were best friends or so i thought. she recently had me arrested and told the cops that i stole $790 cash out of her purse and that she had seen me do it. but if she seen me do it like she says why didn't she try and stop me can someone please tell me if this is really going to hold up in court she says she has a witness to me being there but thats it