D..
Are there particular things that you do for her that she doesn't ask for you to do, that you just do because she needs them to be done? The next time this happens, DON'T do something for her. When she asks why, tell her why. Rachet it up until she "gets" that this attitude of hers about the board is affecting her in a way she doesn't like. That will help. You'll probably have to have this discussion several times.
Good luck!
Dawn