It's bad to hide transmittable diseases from your significant other.
Jose started an account on a gay dating app to meet somebody even though he is HIV positive.
Jose wanted to have sex.
Jose puts that he is HIV positive in his profile so that other men will know.
Jose finds a man that is wiling to have sex with him, but Jose doesn't tell him that he has HIV.
A man who is interested in Jose sees that he has an STD, so he makes sure that he's protected before having sex.
The man ends up getting HIV, and it ends up turning into AIDS.