I don't think it translated well into English exactly. In translating, I thought her question was, "Why do men like one type of woman, but choose another and then keep looking." But it seems from a previous post that her question is "Why do men like a woman, then choose another, but then come back."
I honestly do not know the answer to either question, because I am not that type of man. I do admit that I once chose the wrong type of girl in my youth, but now I know what i want and what I need from my woman. Once found, there is no reason to look further.