Lyric discussion by hundredskies 

AlecsPen is correct. The lover infected with HIV knows no one will ever want him if they knew about his disease, so he hides it. When he has sex with a new person, they don't know ("when you let me in, did you not know where I had been?").

"They let suspicion kill the truth" makes me think someone only BELIEVES someone is lying, but I don't know...

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