Welcome to HCM.
There are people remaining HIV
negative even after years of regular sex contact with their positive spouses (nearly 30-40%) and they are called as Sero- Discordant.
HIV manifestations usually occur after 5-7 years or more after the high risk activity. Fever
before two years was a nonspecific condition that anybody can have and it is not a specific manifestation for HIV.
for HIV only can reveal your HIV status. So better to have a test. As your girl friend remains healthier your chances for HIV is very low only.