Thanks for writing in to us.
Herpes is one of the easiest spread infection. However there are certain facts about herpes transmission.Cold
sores (genital herpes
virus 1) can be spread by sharing cigarettes, drinks, lip stick, chap stick, etc. The most common way of spreading cold sores is by kissing someone (especially wet kissing).
You can NOT get genital herpes from sharing a cigarette with someone who has genital herpes.
Very close skin contact as during fore play and sex can spread herpes infection.
From your description of events, it is very unlikely that you might get herpes from her.