Typically, greater than 1.09 is considered a positive result, but I would not conclude that you are hsv2+ without knowing more about why you took the blood test. Did you have a risky encounter and how long ago was it? Did you have symptoms, etc?
You have a low positive result. Any index value under 3.0 should probably be confirmed with another test. If you know for sure the other person had hsv2 and you know for sure that you had typical symptoms of a herpes outbreak, then I would probably be inclined to say you most likely are infected with hsv2 and you do not need confirmatory testing. But, you have indicated that you did not have typical herpes symptoms and you have low positive test result; thus, if I were in your shoes, I would definitely get confirmatory testing.
On average, the odds of catching herpes from unprotected sex with an infected person who is not experiencing an outbreak is 1 in 1,000. That's on "average" and your encounter may not have been average. Sound like you had a risky encounter and you have a positive result that needs further confirmation, and although your symptoms were not "typical" they were also not completely inconsistent with a herpes outbreak..