Ok so I'm pretty sure what the younger viewers were meant to think Edward was talking about (and all the anti-gays out there) is changing Bella into a vampire and how Alice is meant to be all for it, because in the garage when Alice offers to take Bella with her and Jasper, Edward says "Can you keep your thoughts to yourself?", Alice agrees (what can you do, she said she'd keep her THOUGHTS to herself, not necessarily her hands) and immediately puts her arms around Bella's waist.
Am I the only one who's heart melted at that scene? Perfect Alice/Bella moment and right in front of Edward. No wonder Rosalie was so cranky, she wants some too.