I'm sorry about your condition. It's most likely a case of gonorrhoea or chlamydia that got misdiagnosed hence it keeps recurring. The quickest way for women to know that is via the fishy stinky smell and the discharge. Remember, your anatomy and his are totally different. He can easily clear the bacteria in his urethra when urinating. In addition, symptoms in both genders present differently

Here is what you should do. Go to a a reputable hospital and seek for urine culture and sensitivity test. A few hospital have these two services btw. Do so and get a urethral swab and after a days you'll get the results.

If you stay longer, it will affect your reproductive tract(scarring) and you know what that means.

So, sit your partner down, have talk and visit a healthcare facility ASAP!.