Welcome to the forum. Your questions are reasonable and I'm happy to help lower your concerns about herpes transmission.
Assuming your original diagnosis is correct, you should assume that from time to time you shed virus in your genital tract in the absense of symptoms. It is difficult to know how frequently; your lack of symptoms doesn't make much difference in transmission risk.
In theory, it would seem that hand-genital contact could result in transmission. For example, a partner could contact infected secretions then scratch him- or herself and inoculate HSV at that site. However, there are 3 lines of evidence that this does not occur, or at most extremely rarely.
First, if that happened, we should see occasional new herpes infections equally at all the sites where people normally scratch themselves -- an arm, a leg, the face, the abdomen, and of course on partners' fingers as well -- not only on the genitals, anus, or mouth. But new herpes almost never first shows up at those sites.
Second, even with unprotected vaginal sex, with intercourse lasting several minutes, during which time there is continued, often vigorous contact of genital skin with an infected partner's genitals and secretions, the average transmission risk for HSV-2 is somewhere around once in several hundred to 1,000 exposures. (In monogamous couples in which one partner is infected, who have unprotected vaginal sex 2-3 times a week, transmission occurs in about 1 in 20 couples per year.) Given those statistics, what can the transmission risk possibly be with the sort of indirect contact you describe?
Third, even in busy STD clinics, with thousands of patient visits and hundreds of new genital herpes infections per year, we virtually never see someone with new genital herpes who didn't have vaginal, anal, or oral sex (usually unprotected) with an infected partner. In 30+ years in the STD business, I have never seen a patient with new herpes whose only exposure was hand-genital contact.
All of these comments above should also apply to vaginal contact with torso or anywhere else.
You might wish to reconsider resuming anti-HSV suppressive therapy. Controlling symptoms is indeed an important reason for such treatment, but doesn't apply to you. But the other reason is to prevent transmission. The overall transmission rate is reduced at least 50% (probably more than that), so that suppressive treatment with valacyclovir or acyclovir is a reasonable consideration for all HSV-2 infected persons who are dating or otherwise likely to expose new partners to the risk of infection. (If sex with your prospective partner is really going to be limited to hand-genital contact, you needn't worry about it. But of course most sexual relationships naturally include intercourse.)
Here is another recent thread that addresses other aspects of genital herpes transmission:
http://www.medhelp.org/posts/STDs/Herpes-Transmission-to-an-unaffected-partner/show/1421367
I'm going to also bookmark this thread as well, to aid in future responses to questions specifically about hand-genital contact.
I hope this helps. Best wishes--- HHH, MD