At this point there's no way to know what it was going on then. If you are worried, both you and your partner should get type specific herpes igg blood tests done. I can help you both with the results if you need them.
grace
The non-type specific herpes igg blood test was a waste of your time and money. You can't ascertain a single thing from it. Even if you repeat your blood test with a type specific herpes igg blood test and it comes back as hsv1+ ( th emost common cause of oral herpes infections ) , no way to know if it was the cause of your symptoms then or not. A lesion culture at the time would've been most helpful. Did they also do strep cultures on your throat at the time and such?
grace