My nephew is walking me down the aisle

I have never had a great relationship with my father.. My grandfather was like a Dad to me, my whole life. He always said he'd walk me down the aisle and do the father-daughter dance with me, but he passed away a few years ago.

My 9 year old nephew and I are very close, and he will be walking me down the aisle. I need help with wording, if any, to replace "Who gives this woman...". Help!