I have a sister-in-law with some of the same problems. When she threw her stepson against a wall, she knew she needed help. She is finally on meds and a joy to be around. I can't believe that you have endured this behavior for so long. I would move. I know, easier said than done! I would move to another state and leave no forwarding address. Just so you know, not all bi-polar people are like this. It could be that she is suffering from a personallity disorder along with her other conditions. She needs serious medication and immediate therapy. It is to bad that her husband, your relative, hasn't figured out she is lying.