Let me offer a couple of pieces of information that may or may not apply -#1 are you assuming you are not infected because you don't have the lesions or rash recurrences - you can be a carrier and never have those. #2 Your wife could have been infected many years ago and only just had her first outbreak (due to stress or other factors #3 it has to be stated - one of you could possibly have had even a one time exposure during your marriage #4 - I would get an MDs opinion and confirmation that she does indeed have it and that you don't.