First, thanks for the comments.
He panicked and was worried about transmission. He read no information about Hep B although I had told him that I was a carrier. It made me feel so bad. He started to research on it. I booked an appointment to see my doctor to get clarification. My doc said his risk was minimal, almost zero, since we did not have actual intercourse. Doc said it would require a high volume of body fluids or very long contact hours for the virus to pass on. Kisses and oral sex were unlikely to do it.
I post this for information only and by no means I am suggesting that we can go without protection. He said he has taken a vaccine yesterday. I was caught in an unexpected situation and acted impulsively. That caused unnecessary stress and concerns. Please try your best to communicate with your partners before engaging into any sexual behavior.
Oral sex? Though I don't have enough data to support my fears, I would not indulge someone who is not vaccinated. Make sure he is vaccinated and he tests positive for antibodies.
If I were in his place, I would do the following:
1. Test for HBsAg to know if I have been a carrier all along, without my knowledge.
2. Test for HBsAb to see if I am immune.
3. Follow further instructions from: http://www.cdc.gov/mmwr/preview/mmwrhtml/rr5516a3.htm
If you understand this disease, then you know your partner has absolutely no risk. If immune, partner is no risk. If not immune, get vaccinated, become immune, and again no risk.
If you can't explain this and be around the bushes, then yes, you will scare your partner away.
Good luck.