Most Helpful Guy
I'd first ask for a "Maybe Ring", if not a "Remote Possibility Ring", or at the very least a "Not-A-Swnowballs-Chance-In-Hell Ring".
Most Helpful Girl
You don't need to get a promise ring at 13. They can get really expensive easily, and I don't know many 13 year olds that can drop $100+ on a promise ring. Not only that, but you don't need to be discussing marriage at 13. A promise ring basically means "I promise to marry you someday."