If you ever plan to seduce this type of woman, first, you have to know that it is not that easy to lower their natural defense. I am not trying to scare you off but you will have to invest some of your time and effort in preparing the seduction.
She finds no need to express the way she feels within. The natural reserve in her might confuse you in the initial stages of dating her when you might start to think that she is not interested in you at all. However, it is possible that your partner is already deeply in love with you; she just want to be sure she is ready for commitment.