I just wanna ask a few questions. I suddenly remembered something that had happened around 3 years ago. I had a relationship with a pretty messed up guy who took drugs and sex etc, however the relationship wasnt a sexual one, we only held hands, touched each others' arms, hug, and all those casual contact. So regarding this skin to skin contact,
1) if lets say this guy has std or even hiv, how easy would it be to transmit hiv if there were cuts present?
2) How deep must the cut be for it to transmit anything? Does it have to bleed at that time?
3) If the cuts were only on him, and not me, and i touch his arm where the cuts were, can it transmit any std/hiv
4) There was an incident where we were working and i accidentally cut my finger and he (assuming he has std/hiv) took my finger into his mouth and sucked the blood out of it. Will i be at risk from contracting anything from him? I've read that saliva does not contain hiv traces but i'm wondering because there was a fresh cut with blood present.
Thank you!