Hi there. It appears that either your girlfriend has aquired an infection from another source as you dont seem to have any manifestations of the disease clinical or on lab tests. Is the disease 'gonorrhea'? If so, you should have a yellowish discharge closer to the time she got tested & was diagnosed positively. Is it a chlamydial infection? or a viral Herpes
infection? If so, you need to do some further tests to rule out the same. Take the VDM kit after running all the tests for completion sake or if you envisage furether contact with same partner. Cheers! If you need further clarifications, feel free to use the site's 'ask-a-doctor' feature & you may contact me privately. Cheers & Good luck!