I have been with my partner for ten years and he is negative. Never had anything but contagious love

The most important thing in your life should be being true to youself and others.

You seem to have posed this question before. and thank you for asking...🤗 I understand you are sexually active but please be careful in how many different strains you allow into your system.. also watch for STDs. 🙄.. I have looked this up for your information 🌈🌈🌈
... Unprotected sex between two HIV-positive people is also risky even if both partners are otherwise STD-free and the relationship is mutually monogamous. ... HIV superinfection occurs when a person who is already infected with HIV is exposed to and becomes infected with, a different strain of the virus.Sep 7, 2018

I have bf of 12 years. He is negative and me positive since 80s.
He has never changed from neg to pos and we have lots of sex.

Well I would say if two people are undetectable and they have sex unprotected it is possible that they could infect each other with a different strain there for creating a stream that their medications may not protect them from the re-infection cuz it could be a whole different strain for that you would find out when you have bloodwork done so it would be something that you would have to be careful with and probably be better wearing protection now if you're going out with a positive person has not been tested and they are positive and then they happen to spring it on you that their positive I would say that depending on the strain you still could get infected so better to use protection at all costs because again any strain of anything else would make your immune system weaker and make the HIV strain more of a super infant and infection bug and even though this virus drugs are getting stronger and eradicating if you create a new one it may be bad news for you and good news for someone else because you may pass away from it and they may benefit from the fact that that superbug was created and they were able to kill but that's why antibiotics are no longer working because people respond on take them completely to the end of the regimen cuz once they start feeling good while whole days until I feel bad again by the bug has not gone sometimes your body will kill that infection and sometimes it will not and then you read you become sick again and have to take another dose of antibiotics the more you do that the less the antibiotics work hugs to all be safe happiness and health to everybody