Juelsie, you are so right! I couldn't have put it better. You explained it better than I did. I hope you don't mind I am reposting part of what you wrote.
A parent's love is different in that we will always seek their approval, feeling to fall short of it, even if we don't. Our children's love seems to change from dependant love on us to judgemental love over time, and a husband's love can change because of our appearances, or our actions, but a grandmother's love, *smiles* that reaches out through space and time and even across the River Jordan to squeeze our hearts in a hug of pure "no, darling you probably shouldn't have gotten drunk and puked on the priest at Christmas mass or mooned the congregation, but I can understand why you did it" kind of love.
As much as I know how much my parents love me...its NOT the same. Grams have a way of not showing any kind of disapproval over things parents make big hoopla's over. And I loved the example you gave..lol, that made me giggle so hard..haha. I can now never ever moon the congregation with at least one high five from my grams. haha.
Love ya Juel!