Thank you so very much. That's quite the relief.
Extraordinarily unlikely scenario. Usually requires direct contact with a sore in order to transmit. In any case, the majority of the population has HSV-1, usually herpes on the lip (cold sores). It's not an STD and it's also not worth excessive worrying. It's a mild annoyance in almost all cases.
Don't kiss someone with an active cold sore and you'll probably never get it.