make sure you are busy that day don't sit around and wait to hear from her don't acknowledge it (unless she does first)
it's hard, i know
but you will get through this
as for the comment about your grandmother, it just sounds childish to me she was throwing that in your face to get a reaction why? who knows, not ever her
but we cannot read into things
i'm glad today was better for you
you will have more and more of these, and the bad days, fewer and further apart i know this to be true