Welcome back to the forum. As you know, herpes questions are normally answered by Terri Warren, but I see you already have her perspectives, both in your previous thread and apparently in discussions with her on her own forum website.
I can reconfirm Terri's advice that there is little chance you have genital HSV1 and, if you do, little chance you will ever transmit to a partner. As she said, genital HSV1 is rarely transmitted sexually, so the odds are you were not infected 13 years ago by your sexual exposure to the partner with HSV1. For HSV2, which is much more readily transmitted sexually, the average transmission risk for a single episode of unprotected vaginal sex is around once for every 1,000 exposures. That's why at least half of all regular partners never catch it themselves. We don't have this kind of data for HSV1, but clearly the transmission risk is far lower than for HSV2. From the other thread, I see you had an exposure soon before your partner had an outbreak, which does raise the risk. But still, the odds of transmission from a single event were low.
And you also have the negative HSV1 blood test results and your lack of outbreaks typical for genital herpes (understanding that you were examined during possible outbreaks but the providers did not think them typical for herpes).
So my assessment is that for you to have genital HSV1, you would have had to acquire the infection despite a low chance of transmission; have false negative HSV1 blood tests; and infection without typical outbreaks. The first of these appears to be rare. The other two are not uncommon, but still happen in a minority of cases. The science of probability and statistics dictates that the chance all three of these would break the "wrong" way are very, very low. I would put the chance you have genital HSV1 at less than one in many thousand. And even if you have it, the chance you will infect a future partner is very low. Beyond the inherently low chance of transmission, statistically half of all potential partners will already have HSV1, mostly oral (with or without known cold sores etc). Those persons are immune to new HSV1, anywhere on the body.
So my advice agrees with Terri's: You can safely go forward with confidence you do not have HSV1. To answer the two specific questions you have asked:
1) Yes it is true that genital HSV1 is rarely transmitted sexually to partners. In even the busiest STD clinics, virtually everyone with new genital HSV1 acquired it by oral sex, not vaginal or anal intercourse. In my 40+ years in the STD business, I have never knowingly seen a patient with genital HSV1 not acquired by oral sex.
2) I'm not sure what you mean by "desired" location. HSV1 can infect any body area, but it most easily infects the mouth and for some reason does not as easily infect the genital area. "Could" you still have genital HSV1? Yes. Is it likely? No, very unlikely for the reasons discussed above.
I hope these comments are helpful. If you find yourself continuing to obsess over the possibility of having genital herpes despite the strong evidence you do not, professional counseling may be in order. It really isn't normal to remain as concerned as you are after the reasoned, science-based reassurance you have had.
Best wishes-- HHH, MD