Unfortunately, you can't just have them test ONCE either. You pretty much have to go through your ENTIRE relationship being tested for HIV. Every three months.
This al happened to a aistah named Lynn Chamberlan who now does HIV education for the NFL. Her mother also runs an HIV education and hospice for HIV Pos Wome called MArylin's Manor in Los Angeles. She was dating a bisexual man lke 15 years ag a contracted HIV. She was at Tuskegee and was infected by her boyfriend who had it for 2 years and didn't tell her.
Her story is
http://www.blackaids.org/kujisource/...hamberlain.htm
It doesn't say but he was bisexual. She is now engaged to be married.