This reminds me of the Grimm fairy-tale called "Brother & Sister."
It's a story about two siblings that escaped from their abusive stepmother, not knowing that their stepmother was also a dark (evil) witch, she cursed the springs of the forest (whoever drinks out of those springs will turn into the animal it chose).
And the little brother drank from the "Spring of Deer" and turned into a deer.
That would be cute. Personally I'm not fond of the idea of them as a couple, because they are of different species, but I have yet to watch all of Bambi so I do not know if they suit each other in personality. I am also VERY fond of the idea of them as good friends. I think they'd take to each other, and they'd have some very interesting adventures. It would be an interesting crossover. I wish Disney did more crossovers like this: [link]
Then we'd be able to see how Belle and Bambi interact
It still amazes me how much effort was put into that show. they animated every character so beautifully! ah! I miss shows like that. it's a shame we don't have 2D animation as much as we should any more.
any way, Belle and The Great Prince's relationship is very much based on friendship, the idea behind any romance that would be between them was based on a story I was conceptualizing about a woman who was cursed to turn into a doe, and during that time fell in love with a stag. when love breaks the curse and she's human again, he feels betrayed and she leaves, later shunned from her village as well. but the two meet again and still care for each other. the time they spent in separate forms tested their hearts and through a long winter they watched over one another until with the changing of spring came her transformation back to a doe. (happily ever after ending goes here )
and if you haven't seen all of Bambi, I strongly recommend watching that AND the sequel Bambi 2, which really focuses on the relationship between Bambi and his father The Great Prince of the Forest. they're cute and beautifully done. also Patrick Stewart voices the Great Prince, so the movie is made 100 times better ^^