No, a shingles shot will not influence it, but that could easily be a false positive.
I see your closed thread post. Some people don't get outbreaks right away, and may not know they have it for a long time. Hence, they have antibodies first.
Is this all because you have a partner with ghsv1?
Even if you don't have hsv1, the chance that you'd get it from them is virtually zero in the absence of them having symptoms. I'm not sure what the fuss is about. Undoubtedly, you've been exposed in the past and just didn't know it.