It is NOT correct that you may have a low positive because you were exposed to the virus but did not become infected. That is just ridiculous. You probably had a low positive once because the IgG tests are notorious for false positive and the CDC says now to never do them unless you have concerning symptoms. They also say never to do IgM test but I see that was also done.
I would bet a lot of money that you have a negative blot for HSV 2.
Terri