If you not in a relationship, you need to practice kissing without exchanging saliva. You don't have to throw your tongue down a woman's throat when kissing. Do that only with your girlfriend.
The answer is "maybe yes and maybe no".
There are times when the Herpes virus is quite contagious and times when it is dormant. I doubt she examined the interior of her mouth with a dental mirror.
In addition, mere contact does not guarantee transmission. Usually there is a compromised immune system.