Sorry, I'm one of the least emotional people I know and even I think this is a shitty ass thing to do. The WHOLE TRIP was planned for this girls birthday and at the last possible moment leaving her no time to secure other arrangements her friend bails on her. It's 30 minutes out of her way. With a friend in the car 30 minutes is nothing unless that friend is shitty and she already said it wasn't like she was being dropped off in the middle of the night. To top it all off THEY GO WITHOUT HER ON HER OWN BIRTHDAY TRIP. The last thing she is being is dramatic. That is a shitty selfish friend and I think you should pass on her number to a few people in this post since they seem like they deserve each other.