That's a grey area for informed consent, and grey isn't a good color for sexual consent.
But take that whole story, and change it to HPV or gonorrhea. Why should it be different for HIV?
Look, something I didn't initially pick up on in this thread, is that it *is* still illegal to knowingly expose someone to HIV.
Now it's a misdemeanor, like for all the other STDs and for other diseases.
Still criminal, but not a felony, and not treated any differently than other diseases.
As it should be.
The reason I said a year in prison, is because that's what a felony means. At least a year in prison.
Why should HIV be the only disease that gets at least a year in prison for knowingly exposing someone to?
There is no logical answer to that question other than 'it shouldn't'.