I was yesterday Thai massage shop, I was lying on my back and the massage worker was putting the towel on my body from the front, and he was also putting the towel on my eyes for my comfort l can not see any things , and he put his mouth on the top of my penis .

The head of my penis is covered with a towel 2 times when I felt that, I felt angry i got up and finished the massage , I think he is gay 

My question 

If he put his mouth on the head of my penis with his saliva can the HBV go through the towel to the head of my penis? 

Tell me if you understand me