The Doctor and his companions, along with Twilight and Cadance, spent the next day redoing the preparations for the wedding.
Then, the big day came the day after. Shining Armour assigned the Doctor to the role of best man as a way of saying thank you. He also reminded him, "Don't fall to your dark side, Doctor!" He also assigned Twilight as his best mare.
The wedding ceremony began. Princess Celestia led the proceedings. "Mares and gentlecolts, and ladies and gentlemen…" The Doctor saluted.
"we are gathered here today to celebrate the union of the real Princess Mi Amore Cadenza..."
"Princess Cadance is fine," Cadance added.
"Hm. The union of Princess Cadance and Shining Armor. The strength of their commitment is clear. The power of their love, undeniable. May we have the rings please? I now pronounce you mare and colt." The entire crowd cheers as the newlyweds looked outside.
Celestia turned to Twilight and the Doctor. "This is your victory as much as theirs. You persisted in the face of doubt, and your actions led to your being able to bring the real Princess Cadance back to us. Learning to trust your instincts is a valuable lesson to learn. But Doctor, next time, don't fall to your anger like you did the other day!" The Doctor looked at her and looked back.
Princess Celestia signalled to Rainbow Dash and she performed a sonic rainboom over Canterlot, saying "Best - wedding - ever!"
Soon after, Doctor Whooves caught the Doctor trying to get back into his TARDIS. "And where do you think you're going?"
"I've got to move my box. We're going to need the space. And I'm getting changed too. I only came for the dancing."