You cried at The Princess and the Frog? Jesus rollerblading Christ, you really are in a bad way. I mean, Up, The Girl in the Fireplace, Wallace from The Wire - those I get. Those just mean you're not like secretly a Terminator or anything. But
The Princess and the Frog? That just makes me want to give you hug and make you a sammich.
I think you're doing the right thing. If you guys weren't so close, it wouldn't really matter so much if anything went wrong; but since you're sure that you want her in your life whether as a friend
or, potentially, a girlfriend, it's worth holding out until you know for a fact that you're not going to start weeping over your ex in the middle of a date or anything.