But Batman and Zelda are significantly less 'kiddie' than Tinkerbell. Seriously, Batman = okay for teens, while Tinkerbell = okay for 5 year old little girls. So by the time you're on your way to 30, Tinkerbell has a much bigger gap than Batman... She can wear whatever she likes, but I do see her fiance's point if her whole wardrobe is made of that sort of thing. It's okay to wear if you're a tiny little girl or an old cat lady. Anywhere in between, one would hope there's more than just that sort of thing in your wardrobe. From time to time, sure, but all the time... tiring, no?

"She has a right to wear what she wants." He is not taking away her right away - he didn't forbid her to wear the clothing. It's just that he just doesn't want to be seen with her when she's dressed like that.

You also have to remember they have basically attempted to make Tinkerbell into a sex symbol, though. :/ To cater to the older/middle crowd. Honestly, the fiance is still a douche. If he's that embarrassed of her, they shouldn't be together. Period. There is no reason she should have to change how she wants to dress to suit his whim.

Batman is a man who dresses like a bat and Zelda is a teen game. They are still often seen as childish and immature, and associated with people who are awkward and losers. While lately batman has become slightly cooler, so has Tinkerbell. Just because you might not like her does not mean that Op does not have a right to wear it. It is not the end of the world. Her fiance is an ass for treating her as if she is a child. What she wears--unless she is wearing booty shorts, a thong and her bra--is her business. If he is embarrassed about her then he needs to leave her.