Oh my. Do you live in the US or India? I would be so surprised if the level of patient education related to HIV positive partners would not tell you how one gets HIV. From a beard rubbing onto a pimple?
How one gets HIV. It's simple and true for someone who has an hiv+ partner. The risks: having UNPROTECTED vaginal or anal sex or sharing IV needles to INJECT drugs That's it. Air and saliva inactivate the virus.
So, obviously this is zero risk.
But maybe you should talk to your doctor about taking Trulia or another PREP medication so you can be in a sexual relationship together? They have come a long way and now people live full lives with HIV.
You do not need ANY testing and if you think you do, you may be too anxious to be with an HIV positive partner.