As you can see, Cadance never needed to use her love spells to get Shining Armor's attention.
Though I still doubt she can use her love spells to actually get a colt to fall for her.
In honor of Shining Armor and Cadance's anniversary, here is an edit of my "Feel the ___" base. I think this fits them both pretty well. :3
MLP © Hasbro
FiM © Lauren Faust