For her birthday last year, my father gave my mother a card which said on the front:
"Grow old with me, the best is yet to come."
They're best friends, they support each other when times are rough and share in each other's happiness when times are good. They've laughed together, cried together and brought up six children together.
They're a fantastic role model for their children and grandchildren. I hope they have many more happy years together.