My ex-roommate admitted to me that he had sex with a Mexican sex worker. He told me this over 2 years ago, so I cannot remember if he said he wore a condom or not, although I believe he said he did. This never bothered me when we lived together, but I ran into him last night at a bar and he had a cut on his knee that was still bleeding. I got a little freaked out, so when I got home I washed my hands thoroughly, changed clothes and went to bed. What concerns me is that I may have come into contact with some of his blood, on a surface at the bar, by shaking his hand or through contact with one of our friends who may have had contact with his blood over the course of the night. I didn't shower after I left the bar, and now I'm nervous the blood may have been on my clothes or someplace other than my hands where I couldn't see it, so i may have touched my mouth/eyes with his blood without knowing.
Is there any reason for me to get tested? Further more, should I suggest my friend get tested (I know he has not yet)? I don't want to feel stressed out around my friend, and I don't want him to go untreated if he does have HIV.