I have been with same man 5 years. why am i just now contracting genital herpes? and why haven't i contracted it to my mouth?

Genital herpes: Usually sexually transmitted and has nothing to do with oral herpes ( cold sores )-HSV-1. Assuming that both you and your partner are monogamous, there is still an symptomatic carrier state which can lay dormant for years; however, if either partner has had sexual relations outside of their relationship, then all bets are off.Both/all partners need to be examined.