SO...in a nutshell...are saying that you had unprotected sex with a girl who might have been exposed to hiv?????
regardless of who slept with who...if YOU had unprotected sex, you potentially set yourself up for not only hiv but other stds as well.
a test at 3 months will give YOU a conclusive test result.
your 3 month test will be conclusive
Has she obtain a conclusive negative test result?