You do NOT know that you have HSV-2. Otherwise, you wouldn't be in the herpes forum asking if you got HSV-2 from this event.
In any case, it does not matter. As I said previously. herpes only increases risk if you had a risk. You had ZERO risk. There is no risk to increase. If you double the risk from a zero-risk event, you still have zero risk. If you triple the risk from a zero-risk event, you still have zero risk. Anything multiplied by zero is still zero. MOVE ON from thinking you had any risk for HIV. You did not.
Oral is zero chance of hiv transmission, so there is nothing that anyone can do to make oral into a risk.