Wow she is definitely high maintenance! You sound like a very generous and kind person. Disney should be light and fun for you. It stinks your friend is being so selfish. If you really want her with you though you will probably be playing by her rules by the sound of it. I think you should make it clear that you expect to be compensated at some point then if she has a problem maybe you should leave her behind or take someone more deserving. Is your friend aware of how stressful she is making your life? If so maybe she is not really the person you should be spending your last trip with. You deserve way better!!! Good luck be brave and have fun in Disney!!