I wouldn't date them. If I know that it won't be able to go to the next level, whats the point? Whos to say that I end up with this person and marrying them? If not, then I have run the risk of catching it and passing it on to someone else. No way.

Obviously, he was involved in some risky sexual behavior not all that long ago if he still has it. I'd stay away!

Chlamydia is treatable, and curable. I would worry about a guy who knows he has it, yet isn't taking care of his body and getting it treated.

Please don't lump "HIV" and "Herpes" in the same category. Herpes is not fatal, most studies have shown that by the age of 40 approx 90% of people have at least one form of herpes virus, and it's treatable. I would probably date a guy with herpes, IF he was taking an anti-viral medication and sex was avoided during an outbreak. It isn't that bad of a disease, as diseases go.

HIV, while treatable, can still be fatal. I think I would sadly, not date someone who was HIV positive. Sad, but true.

I did refuse a date with a man I really liked at one point years ago. He admitted he had been diagnosed with Trichamonas. (A parasitic sexually transmitted condition.) When I asked him if he had gone through the treatment, he said, "I bought the pills and the guy (pharmacist?) said I couldn't drink while I was taking them, so I said Fuck it. Guys don't have any symptoms with Trich anyway." Uh, dude just lost himself a date.

It was his lack of not only self care, but lack of caring about any future partners (he told me about the Trich before he ever asked me out, I guess he thought I forgot. I didn't.)

Why does this young man you are talking about not care for his own body? That would bother me more than his actually contracting a curable STD. People get STDs, but not DOING anything about it is just immature and irresponsible.