If your partner is unable to accept the facts, encourage him or her to speak with a medical expert or counsellor. Or just walk away. The bottom line is, there are lots of people out there who are attracted to you for exactly who you are - with or without herpes. The majority of people will react well. After all, you trust them enough to share a confidence with them that you wouldn't share with just anybody.
Most people respect that.
So pat yourself on the back. Whether or not this relationship works out, you have enlightened someone with your education and experience, correcting some of the myths about herpes that cause so much harm. You have removed the shroud of silence that makes it so difficult for others to speak. And you have confronted a difficult issue in your life with courage and consideration.