Stillme, you are doing the right thing by telling him. It's not a topic which can be hidden and he would have to find out sooner or later. If you have both had previous partners then it's possible that he gave it to you or that you caught it off somebody and only you have the virus and he hasn't caught it yet. There are so many possibilities.
I'm certain that so many people go through soul destroying thoughts after they get their results and want to close themselves off from the world. People with partners think "will my partner leave me" and those without partners think "will anybody ever want me". Either way, our thoughts mostly centre around "love" and "partners". Those who are in a happy relationship where both have the herpes virus or one partner has accepted the other and accepts the fact that they may catch the virus one day, seem to be the happiest as they feel that they are loved and accepted by the other half and they simply get on with their life. So everybody can understand your fears 100%.
There isn't much i can say which will help your anxiety, but the sooner you hear from him the better it will be, no matter what the news is. Waiting is the most difficult part. The anxiety wouldn't be doing much good to your system either, if you are anything like me, it would bring on the ob's. It would be so much easier if this virus didn't have the awful stigma which is attached to it. It would help that the medical profession and schools get better educated on this virus so that they can give realistic and correct information and advice to those who have herpes and to those who want to know how to not get herpes.
I wish you all the very best and hope to hear good news soon. Take care