1.) could I have passed on the virus without showing any symptoms? (semen, saliva, blood?)
Yes you can. There are 90% of americans who have HSV and do not show any signs or symptoms. Some people do not have any systoms and are just carriers for the virus. Other do not have outbreaks until 6mon to a couple of year after infection.
2.) should I try and get and conclusive answer as i'm worried that I have the virus and will pass it onto other?
I would get all of the necessary tests done, so you can know for sure. I tested neg on a culture and later I tested pos through a special kind of blood test.
3.) once my girlfriends episode has cleared up, should I be worried about getting the virus from her? (assuming I wasn’t the carrier in the first instant)
She can pass it on at any time. 70% of people got hepes from theor partners when their partner had no signs or symptoms. You can pass it at any time.
4.) if neither of us show any physical signs of an outbreak can we have unprotected sex without worrying of giving the virus to each other? (no condom are a preference of us both)
No not really, there is still the chance of passing it on. My boyfriend and I had unprotected sex for a whole year and he never got it. But 14 months later he tested positive. So its never a sure thing.