To the person with the bipolar friend: I had a Similar experience and completely understand how you must feel; However I urge you to try to have compassion for the fact that this person suffers from mental illness and cannot sometimes help some of the behavior as much is a paraplegic cannot help the fact that they can’t walk. I’m not excusing the behavior, Just please not to lose sight of the fact that these are human beings And more than anything need support to get the kind of professional care they need.