What did she mean by what she said?

This kind of dialogue is actually a normal couple communication, which belongs to the nature of touting each other's modesty.

When you reply "Your charm exceeds my ability", the other person's answer is "You are enough", that is, even if your charm is great, or even if your ability is not as good as the other person's charm, you are satisfied with yourself, in other words, you are not disgusted. This is a sign of love, and jokes are not excluded (saying that I don't dislike you).