1. Can you get oral hsv1 or oral hsv2 from swapping saliva especially if there might be blood, gum skin, or lip skin inside of it, if you are on the receiving end of consuming it (0 skin contact, only saliva swapping)?
How/why do you swap saliva if there's no skin contact? Do you mean sharing drinks, utensils, etc? No, this is a very inefficient way of transmitting herpes. Herpes needs direct skin to skin contact to transmit.
Herpes is not found in blood, so that's never a concern for herpes.
2. Can you get hsv2 from a handjob by using someone else's Saliva as lube especially if there might be blood, gum skin, or lip skin inside of it with 0 skin contact, just saliva?
No. Oral hsv2 is uncommon, and when it does occur, it rarely sheds, rarely recurs, and therefore, rarely transmits. I wouldn't worry about ever getting hsv2 from someone's mouth who doesn't have an active outbreak.
3. I was going to the gym with my friend and he told me to grab a pair of his underwear to change in but I accidentally took a dirty pair and worked out in it, can I get HSV2 from this?
No. First, people with herpes aren't contagious 24/7, and even if they were having an outbreak at the time, and assuming some virus had gotten on the underwear, it starts degrading quickly outside the body. Even if some virus remained active, it wouldn't likely be enough to infect you.
Herpes needs direct skin to skin contact to transmit. Think kissing, oral sex, penis in vagina, or anal sex. Unclothed heavy vaginal/penis or anal grinding may transmit, too.
4. Can you get hsv1 or oral hsv2 from sharing a blunt or cigarette especially with someone who has it?
See #1.