Is This Possible? My girlfriend And I Are Still Virgins After Being Together For More Than A Year

My partner and I have been together for more than a year. We got together as virgins, and we are still virgins. My partner says she is ready to have sex and will always initiate any conversations about us losing our virginity, but she has anxiety problems and doesn’t feel comfortable around me in the nude. I feel I am doing something wrong even though she tells me I am being a gentleman. I really care for her a lot and I am scared she will find someone else who will put her at ease better than I can.