question: I have been in a monogamas relationship for years was seen by gyn 3yr ago was fine! Still with Same partner and I go to gyn last week -that said I had trichomoniasis! My partner went to get checked and he says he donot have it!! How is this possible????? I have not been with any one else!!! So how I have it and he doesn t?-we been together 15yrs. Now he thinks I cheated!!