I see nobody has replied to your post yet, so I thought I would!!!
When I first found out I had herpes, I was devastated. There was no way i was going to be able to cope with it on my own, so the first thing I did was confide in my best friend. She was ..and still is...so understanding and a 'rock' to me. I knew I would have to tell my folks though as we are such a close family and I knew that they'd know something was up. As much as they were slightly disappointed, they were more gutted for me than anything. I don't regret telling them at all, cos whenever I'm down about it they are there for me. On the other hand though, from reading other posts, I know that some people choose to keep it to themselves...I suppose it depends what kind of person you are - I'm not the strongest and need support!
Like you, I am constantly worrying about the future...will anyone want to be with me now etc. A guy who I've been close to for years knows there is something up with me, although i haven't told him what exactly, but he's got the general idea - he's made it clear that this would not bother him at all. This alone has made me be a bit more positive. I am concerned that not everyone will have this attitude though and I don't know how I'd feel if the first person I chose to tell, knocked me back. I've been to speak to my dr recently and she seems to think I'm possibly thinking my situation is a lot worse than it actually is. In a way I agree with her now. A lot worse could have happened to me and at least I'm lucky enough to still 'look' normal! At the end of the day..it's just a skin condition that might never affect me again!
I think I would want to be honest with a partner right from the start, however i worry that if it doesn't work out, this person could tell someone about my H and I don't exactly live in a big town..and word gets around! So in another way, i think it's maybe ok to have safe sex and bring up the subject later on when I know it's going somewhere. Again everyone is different though and I'm no expert on this particular subject, cos I too, have not been in this situation since I was first diagnosed.
Hope this helps a little,