Had unprotected sex 11 days ago w/ a girl, she saw symptoms 3-4 days after encounter got tested for hsv2,came back + for igg test of 3.71, - for igm test so its not a new infection for her. i got tested yesterday. is there a chance i dont have it?

If she had the most commonly used test (Focus HerpeSelect®), then her value of 3.71 is conclusive: she is infected with HSV2. (The data on numerical value are less certain for other blood tests.) After only one exposure, probably you were not infected, especially since you apparently have no symptoms. The average transmission risk for a single exposure is around 1 in 1,000.

If your partner had an active lesion (even with a negative IgM test) , HSV is very contagious and you may have contracted the virus. The "good news" is that sexually active individuals almost inevitably acquire this disease, and treatment is available for active lesions with antiviral meds. Stress from any source (disease, emotional, school, work, etc.) can activate latent HSV.