Are Girls Mysterious?

Are girls that mysterious like what the Chinese say "women's heart are like the needle under the sea."?

What will you think if a girl suddenly make you feel that she is unhappy and when you ask her what happen and she just say don't know? As for me, I will feel nervous and worry about it. I want to make her become happy again just like before but I really don't know where can I start to find out what is the source of the problem. Although I have already try hard but what I can feel is I can't even make her laugh and even I feel that I make the situation worst. I really want to help her but now I feel helpless. I don't know where the problem come from, what cause the problem. In the end, I and her are in the cold war now, I want to help her but what I get is just negative message that refuse me to help her. This is the longest cold war between I and her ever been. Haiz

I really hope that she can tell me what is actually happen and can become happy again. Wish you can enjoy your university life in KL.