Cotton Candy is a joke character, based off of her just-as-joke-ful pony form. Made to, as previously stated, be a joke character, she's typically just drawn for fun.
She adores acting shy, and sheepy, yet bossy. Carrying a hand-gun somewhere, any remark like "You look boyish" will send her into a spurt of offense. Highly protective over all of her feminine traits, and disagrees at any sign of masculine traits.
In general, she's just the kinda girl who demands to be treated and 'worshiped' as a 'princess', even demands for you to call her that, no matter what.
Greedy, too.