Sounds like it H, I just wouldn't take the bait. Your better than that. I know your probably beat down and tired of it but I think it's time for you stand your ground, put in some boundaries and take control. I think once you let her know it will no longer be tolerated you might feel some of the perceived power shift.
When I first joined the board a read a lot of the following sitch from Robx who Sandi posted on quite a bit. It resignated to me because he had young children as well and a W that was disrespectful to him. Maybe you will find some useful information as I know I did.
