It is definitely possible that you were infected orally in childhood and have just not had symptoms. Or you could be infected genitally and not be symptomatic. HSV 1 genital infection is rarely transmitted through intercourse so I wouldn’t be too concerned about transmitting to a partner if she tests negative. The IgG test also misses 30% of HSV 1 infections so not trustworthy. About half the population between 14 and 49 in the US has HSV 1 infection. However, the CDC is very clear that HSV should NOT be included in STI screens due to the high rate of false positives. Your HSV 1 result is NOT a false positive, bTW
Terri