Don't know what to tell you other than glad you made the effort. Just remember that while you feel her reasons are bogus they are very real to her (something I am trying to do in my own family situation). I keep telling myself to follow the example set by God and have patience and be long suffering. How long that is, only He knows.
We can respond to irritation with a smile instead of scowl, or by giving warm praise instead of icy indifference. By our being understanding instead of abrupt, others, in turn, may decide to hold on a little longer rather than to give way. Love, patience, and meekness can be just as contagious as rudeness and crudeness.