Maybe she's an Alpha personality too and that's why you're clashing.


I've noticed that when certain people are very alike, they tend to butt heads.


I doubt its got anything to do with her bipolar, I have bipolar, and when I'm in an agitated mood state, everyone is bloody annoying, just for breathing audibly, not one person in particular.


How do you deal?


I usually just ask people if they have a problem with me, and to state what it is clearly so we can address it and move forward.


Works the same way with me, I will be honest and tell someone else (especially a coworker or people I can't avoid like inlaws) that I can't stand so and so about them.


But that's just me, I like clarity.