No, herpes is not transmitted via peck kisses UNLESS there is an obvious cold sore present. In the “old days” not many people realized that cold sores were caused by the herpes simplex virus so they didn’t hesitate to kiss their kids when they had cold sores. Now, people are more aware and are less likely to do that. Certainly, kisses when a cold sore is present present far more risk, even with a peck on this lips. But a black spot does not sound like herpes to me but could a nevus which is like a mole and is not infectious to others.
I think if you plan to test again in the future, it might be good to consider the effects of acyclovir in large doses on the antibody test. So far, I think the effect will be minimal if not zero for the amount that you have taken.
I honestly think that your concerns about having herpes all over the place are groundless fears.
So happy you were able to reunite with your boyfriend.