This information doesn't change my assessment of your risk or my advice.
Welcome to the HIV forum. I'll try to help.
In general terms, being exposed to syphilis indicates a potential risk for HIV. All persons exposed to syphilis should be tested for HIV, as you were. However, given that your partner with syphilis apparently has been tested recently for HIV with negative results, in your case the risk you caught HIV is zero or close to it. Although having syphilis increases the chance someone also has HIV, most people with syphilis don't have HIV. (Could he really have HIV and is lying about his test results? Sure. But most people don't lie when asked directly.)
So you can expect your HIV blood test to be negative. Feel free to return and add a comment when you get the test result.
Regards-- HHH, MD
I forgot to add that he supposedly got tested for HIV, syphilis, and other STDs before we had sex. He brought a card home from the clinic with an ID # and a phone number he was to call for a message about results. I called the number repeatedly for weeks, but there was never any message for his ID #.