I recommend you discuss this concerns with your primary care physician
or OB/GYN. If you have tested positive for HSV-2, then that means that you have been exposed to the virus and your immune system has created antibodies to it. Since you have never had a lesion yourself, one cannot be sure if you carry the infection, though you probably do. I would say that even if you know that you've been exposed previously it is in your best interest to practice safe sex techniques despite the fact that you might not be worried about catching HSV-2 for the first time. There are a couple reasons for this. First, you might still be at risk of being exposed to HSV-1. HSV-1 is the other herpes virus that can cause genital herpes in a smaller percentage of cases. It is the primary herpes virus that results and cold sores of the mouth. The second reason is that partners that have one sexually-transmitted infection are statistically more likely to have others. Thus, if you practice safe sex techniques, you'll be more likely to avoid infections with other bacteria and viruses. Again, I suggest that you schedule an appointment with your primary care physician or OB/GYN. The two of you can discuss the best methods to keep yourself safe from further infection with the herpes viruses and other STDs.