It would be highly unlikely for either of you to get genital HSV 1 since you already have it orally. You have an immune response that should keep that from happening. Your oral sex life definitely doesn't need to end! If you did happen to get genital HSV 1, you would probably not know it, since this immune response would likely keep you from getting symptoms. And since HSV 1 genitally recurs infrequently, you also would probably not notice. All in all, the chances of getting it genitally are really low and if you did, it wouldn't be a big deal.
And I would be a little surprised if he actually had a herpes blood test with an STD screen, but it would be worth looking into that via a check of medical records.
My take on this is that if you both have HSV 1, you are home free for sexual activity. I can't promise you there is no chance of either of you getting HSV 1 genitally, but if I were in your situation, it would be on the bottom of my list of worries.
Terri
I should have mentioned:
-We do not use condoms as we are in a long-term, monogamous relationship---nor do we want to. I have an IUD for birth control.
-The test we both had was a blood test.