One of the 13 suitors trying to hook up with TV's first gay bachelor is HIV positive, and even though producers were aware, they kept the cast in the dark ... TMZ has learned.
We're told Robert Sepulveda Jr. -- the "Finding Prince Charming" bachelor -- got the bombshell news early on during taping, and we're told the reveal will become a focal point. Our sources tell us producers think the show will resonate with straight and gay viewers, and educate the audience.
As for the reveal itself -- we're told it was emotional and Robert was supportive of the cast member.
The show's already been taped, but no word on whether the HIV positive guy was chosen after opening up about his diagnosis.