As adults, oral herpes is almost exclusively transmitted thru good ole romantic type kisses. You really don't need to worry about sharing drinks or anything like that as an adult.
No reason to suspect that you'd get your gf's hsv1 and then start having cold sores again. Research has shown that it's not the strain of hsv that is the issue as much as the individual's body.
grace
OK, the no oral precaution thing makes sense. I'm more curious about everyday things like sharing water bottles, or maybe even kissing when a cold sore might be starting to form. Is it possible that by doing this I could start getting oral outbreaks, even though I already have oral HSV-1 but don't get outbreaks?
Thanks!
It's more of a genetic issue than it is your immune system. This is not an issue for either of you though err on the side of caution and never perform oral on your partner if you have signs of a cold sore starting or an active cold sore.
grace