Is anyone else totally confused about these IGg index values?

Seven months ago exactly, I was tested for hsv. Both hsv 1 + 2 came back positive. I've experienced cold sores throughout my life, so I kind of knew I was hsv 1+. However hsv 2+ was shocking. I've never had an outbreak and the first IGg index value was 2.84. Seven months later I was retested and the index value was 1.97. My doctor says that the values don't have to be consistent, but both values are in that 50/50 range. While I await the results of the Western Blot, I'd like to know if there are some others who have experienced these confusing index values. I beleive this is a new infection, so the index value should have risen over the 7 month period as my body continues to produce antibodies to combat the virus.. right? If it is not a new infection, can the index values just change from time to time? Does the body produce more antibodies when the virus becomes active? So confused! Can anyone shed some light?

Virtually no one gets a zero on this test. You may have had false positives. Glad you got the western blot. Good luck!