Sounds like your GF has no backbone, otherwise your ex would not be getting away with this nonsense. If you want to make your GF feel empowered, she needs to put your ex in her place and point out how lame her antics are as well as pathetic. The bitch is trying to divide and conquer but if you two stick together are more up in her grill, she might back off........... ........or burn your house down (depending on how psychotic your ex is)