Assuming he had oral herpes, which we don't know for sure, the odds you would have been infected is very low. Like one in several thousand. You also have not had obvious symptoms in the first 3-10 days, which I would've expected. You also have negative IgG results, which are not completely conclusive because the IgG hsv1 tests misses about 30% of infections and to be most reliable would need to be taken at 12 weeks, but I really see no need to.
You had a very low risk event, no symptoms and negative blood tests several weeks later. This would be enough evidence for me to conclude I didn't catch herpes if I were somehow in your shoes.