HIV is a sexually transmitted disease. You weren't at a risk.
Please read through the FAQ section of this forum for knowing about HIV and it's transmission routes.
You do not need to test.
HIV is not an airborne disease. It can only infect under very specific conditions, none of which happened here in your scenario. In an adult, only unprotected anal or vaginal sex and sharing IV drug needles with infected users are a risk.
Yes, our opinion won't change. Ingesting infected fluid is not a route to HIV infection.
Chima7 has already listed the ways this virus can be transmitted, you must focus at that.
I repeat, you were never at a risk.
Thanks to everyone very much for your answers; it really helped to calm my mind. And I also apologize if my concerns were offending to someone, I promise my intention was never to do so! Just it's incredibly stressful to have so much anxiety about this matter not to be even able to sleep at night etc.. Some ignorant and fearing informations on internet obviously didn't help in that neither (there were on few sites written that I could be at small risk if someone's cough contained blood and came in contact with my mouth where I could have tiny cuts/wounds) , but I couldn't stop looking for it... And eventually I couldn't help myself other than to ask people who know so much more about this... Again, I am really sorry if my questions were offending and thank you so much for taking your time to answer them.