Welcome to the STD forum. The bottom line is that you were not at significant risk for any STD, including HPV and herpes. Directly to your questions:
1) Oral sex is very low risk even without a condom. With a condom, it isn't just "low risk", but zero. No STD can be transmitted through an intact condom membrane.
2) HSV has to be massaged into the tissues in order for infection to take hold. Brief contact with your scrotum doesn't risk anything.
3) Zero risk for HPV, which is generally not transmitted by oral sex even without a condom. Even people at highest risk for STD, and those with genital HPV infection, usually don't have the virus present in their mouths.
4) Since it was not possible to catch an STD from this exposure, obviously you cannot have an STD from that event that you could pass to your partner.
a 1 and 2) No comment. These are relationship issues. This forum deals strictly with STD risks.
5, 6) These are the same questions as above, in different words. The replies are the same.
Here is a thread that explains the biology of STD/HIV transmission, which includes the scientfic reasons that exposure like this carry no risk. Start reading with the follow-up comment dated December 14:
http://www.medhelp.org/posts/show/1119533
Regards-- HHH, MD