First off, she cannot expect you to make her happy. You either do or you don't.

She sounds like a moody person.. But you have to realize that you can only do so much to try. I mean you tried to make the best of your ruined night by a nice romantic sunrise by the beach. What else can you do? I mean you are making attempts it seems, and if its not good enough then she needs to be a bit more vocal about WHAT is upsetting her instead of making you play a guessing game.

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Appreciate the good times and learn from the bad times....