Don't worry about it, some guy making a move on a thirteen year old girl? Not a court in the world would convict you. [ probably not true, but she'd make it true in her town, and that's what matters. ] She can go on dates with kids her age and hold hands and shit, that's all.

And anyway, it's special because it's her birthday! She's a teenager now, she gets to get angsty and mad. It's exciting.