Does she have oral herpes or genital herpes?
If it's genital herpes, you are at no risk whatsoever. None.
If it's oral herpes, and she had no visible outbreaks, no risk. If she had visible outbreaks, there may be a very small risk, IF your sores are not scabbed over and the saliva came into contact with the outbreak and landed IN the sores. I mean, that's a lot that has to happen just right, ya know? I wouldn't worry.