Hi Shawn,
Thanks for bringing such a wonderful question to the Disney Parks Moms Panel. I have been married to my own Beauty for almost eight years now and our visits to Walt Disney World Resort are always special. To ensure a proposal at Enchanted Tales with Belle will not interrupt the continuity of the attraction, I would suggest contacting Guest Relations at Magic Kingdom Park at WDW.guest.communications@disneyworld.com. There are also several other magical locations located close to New Fantasyland where you could propose to your special princess.
For a Cinderella Castle proposal, make reservations at The Crystal Palace as early as possible. Arrive at the Magic Kingdom a few minutes early and stroll down Main Street, U.S.A. towards the Castle. Go as far as you can and ask a PhotoPass photographer to "take advantage of the picturesque background" while the area is not as crowded. Drop to one knee and surprise your girlfriend with the ring. Another idea is to propose by the
Cinderella Wishing Well to the right of the Castle.
An additional possibility is
Princess Fairytale Hall. While Rapunzel or one of her fellow princesses is talking with your girlfriend, you could get down on one knee with the ring in hand and surprise her when she turns around. It will be her best day ever!
Please let me know if I can assist you any further as you continue your Walt Disney World vacation planning.
Best of luck,
Bob A.