Thanks for your input. I feel better.
Since your partner is negative, there is not one reason for you to retest. You are obviously negative and you were never even exposed to HIV.
I'd say this was an all clear signal.
If he's negative after 6 months and you're negative after 6 weeks, things are looking pretty great for you. Of course, you can't rely on someone else's status - you need to use condoms every time until you're in a committed relationship so that you never have to feel the anxiety you're currently feeling....
Take care.