Welcome to the forum.
You should not be in the least concerned about HIV in this situation. First, you give no evidence to suspect your roommate might have HIV. (If you're worried about it, ask her!). Second, even if you consumed a drop or two of his blood, there would be no measurable HIV risk. Swallowing infected blood or secretions is low risk, and it's certainly nil with only a drop or two -- and certainly if it were diluted in the food the way you describe, and assuming the food was hot, there is just no chance at all.
In summary, there is absolutely no risk and no testing is necessary. But I do suggest you speak with your roommate about it. If she acknowledges having HIV, or being at high risk (e.g. if she is an injection drug user who shares needles), you could always be tested for the reassurance value of the negative results. But honestly, I see no need.
I hope this helps. Best wishes-- HHH, MD
My concern is that my food wasn't hot, and wasn't diluted (we didn't even mix the sprouts post-bleeding, before putting them on the plate). Given this, can I still assume that if she's not high risk (she's not), I don't need to obsess or test?
Last comment... I also had a canker sore at the time... is this a factor? Still no risk, no test?
Thanks again!! I'd love to just drop this once and for all.
These additional details do not change my opinion or advice. There is no risk and no need for testing. And it sounds like you're convinced your partner is not at high risk for HIV anyway.
I know you are concerned, but you should understand that in the 30 year history of the world's known HIV/AIDS epidemic, nobody has ever been known of even suspected to be infected in this manner. It doesn't happen!
Thanks Dr. H. I'll sleep well tonight thanks to you. Many thanks.