I hope we have some really good times together in such a beautiful place, but I have no expectations.
I know easier said than done. I hope you can relax and enjoy what may be a once in a lifetime occasion. Be determined that you are going to enjoy it and don't focus on wondering if she's having fun, or allowing her mood swings to interfere with your fun. If she decides to stay in the room all day, leave her alone and go find something to do. If she's participating, show her what a great, fun guy you can be. The thing is to not let her ruin it for you. Make sense?
It is not about what you feel should work in your M. It is about doing the work that gets the right results. Do what works!