Legal Question in Criminal Law in California

It is likely your word versus his about sex, unless you have already admitted to that. If you sue him, it might prompt him to sue you for the 'infection', which is a high value lawsuit. That assumes you have an STD such as Herpes, HIV or AIDES. If you can prove through medical evidence you don't, then that is a defense.

You need to consult with counsel before doing or saying anything foolish by accident. If serious about hiring counsel to help in this, and if this is in SoCal courts, feel free to contact me. I�ll be happy to help fight and get the best outcome possible.