Good for you for getting info before totally reacting.
Since you have hsv1 antibodies already, these will protect you from getting it again in another location on your body. Also, ghsv1 doesn't shed nearly as much as ghsv2, nor does it recur as much.
My advice would be to only avoid sexual contact if she has an actual outbreak when there is the most virus present (and which is good to avoid introducing other bacteria into her outbreak, helping it heal with less irritation, etc.), and you should be fine.
I wouldn't worry at all if I were you.