The wedding didn't follow any of the usual church protocols since Natalie was catholic. For starters, Natalie didn't have any family - even though all of them were alive - except for Arianna, while Eric's parents were late. Not to mention that the wedding was rushed, hence a lot of frivolous and unnecessary decorum like the father walking her up the aisle was not observed.
The whole family accompanied the couples up the aisle. While Rose held up Natalie's wedding dress train, Ephraim's kids served as the flower boys and Arianna of course was the lone bridesmaid - with Mimi by her side. Nonetheless, the walk up the aisle was a memorable one and her mother looked so beautiful.
