I got tested for different STDs (including hsv1 and 2) just to be safe when I started dating my bf. He got tested too. We both got all negatives. Fast forward 5 months, I get sick with strep and then all of a sudden I have sores all up inside my mouth and on my lips. Like 30+ of them. I go to the doctor, in tons of pain and worried that somehow I have herpes, and the test came back positive. I was really upset. My bf and I fought quite a bit when this happened, it was really terrible. He was really suspicious of me, but he was the only person I’d been with or kissed or anything since we met. He ended up with a sore and thought I gave it to him. He got tested a few weeks later and it turns out that he is positive. Actually, he was probably positive the ENTIRE TIME and didn’t know, because the doctor ordered the wrong antibody test. We felt a lot better after that and are no longer too concerned with the possibility of the occasional cold sore (but if I get a huge outbreak again I’m going to cry). TL;DR My bf didn’t know he had hsv1 and gave it to me, we argued and played the blame game, but in the grand scheme of things it’s not a big deal, so don’t flip a shit if you find you or your significant other has it.