Good grief. Do you people not know any passive aggressive behavior?
Like it. Then in few weeks if it still pains your soul, unlike it. If she calls you out... "Really? FB has been acting up for me." If you must say more, "I can't always tell what is going at fb from my phone." (I don't really know if you mostly use your phone, but if she doesn't know your feelings on canned "whipped cream", margarine, instant pudding, and OMG the horrors of cake mix, she probably won't know, either.)
And that my friends, is passive aggressive behavior. Your welcome.
For goodness sakes, it is not like you have to answer the damn phone.