Thats pretty rude of her & showing disrespect. I would do some ground work basics to show her whos boss. Having her move her frontend & moving her rearend to let her know you have control of her feet & you mean business. Try using the join-up method as well. If she will free lunge, send her around & reverse her then ask her to submit to you by walking up to you when you ask her to come in your space without chasing after her. If you will not come in after you give her 2 or 4 chances send her back off & make her work some more. & also dont let her come into your space unless you give the ok, if shes doin very small circles & you want bigger ones, open your arms & step towards her as if to say "move out." Doin anything you can to get her respect on the ground would be great. I have been using John Lyons Troubleshooting book. Its worked great with my gelding.. I have also used Stacy Westfalls & Clinton Andersons methods & they just didnt work for him, but thats not to say your horse wouldnt benefit from them.