Yes, given B is positive, I agree with you. But B is more likely than not negative which changes things greatly. I'm sure you will tell me the fact we're hooking up is a more risky pool than an average gay, but even with that at 50% I'll take my B situation every time. A is not exactly a homogeneous set either - includes those on meds, those on meth, those who just found out, and those who do nothing. And I wouldnt assume that B's arent on medications. Just like the guy in this story.
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