If so, has he been HIV tested?
Even if his HIV
status is unknown, the chance of HIV
is very low in any particular male without special risks -- sex with other men, injection drug use, etc. The chance yould be higher if he is African American or has been imprisoned, or if he is an immigrant from an AIDS endemic area like tropical Africa.
Finally, even with these risks, or if he has HIV, the odds are strongly in your favor.