What Bill is saying is that if there was no viral activity at all, the immune system wouldn't see it and the IgG antibodies would fade away gradually over a period of weeks. The fact that, in my case, my HSV2 IgG test showed >5.00 indicates that my virus is still active in some way since I've got plenty of antibodies.
I think this answers another point that has come up from time to time here and that is, if there was a "cure" that magically eliminated the virus from our bodies, the IgG antibody count would fade away and after a few months we'd test negative. Previously, we've maintained that once you have the antibodies, you've got them forever. Interesting, as Spock would say.
"Do the Right Thing. It will gratify some people and astound the rest." - Mark Twain