Count your blessings. Most members here, by far, have had far more negative experiences when their partner learned of their gender identity. I'll say it again, count your blessings, and do whatever you need to do to let your partner know that she's absolutely right. You are paying more attention because it now matters to you on a completely different level. That starts with communication. Let her know that you understand and respect her feelings and reservations. Ask her what you can do to let her know how much her acceptance means to you, and how you might reassure her that you will never take that for granted. Then go out of your way to do what she suggests, and more. You are a very lucky crossdresser, and if you later find out that you are "something more", you're going to need that bank of trust and understanding you will have built.