Osana had three wishes, she could ask Adam for anything except for him to die for her. Since almost any wish was less important and worth less than a saved life, that's exactly what Osana did to Adam.
The first two wishes Osana spent just to spend the evening and dinner with Adam. This relaxed him, he expected the third wish to be just as innocuous and simple.
Adam figured that Osana herself didn't know why she had created this situation with the three wishes, so she was using them for every little thing.
But... when Osana uttered her third wish, Adam realized that it was still Osana.
Each of her actions made sense since the past two wishes were just empty wishes, they were harmless and made Adam feel uncomfortable.
He was a little bothered that Osana had used her two wishes to arrange a dinner where Adam only got pleasure and a unique experience.
