I and my wife are going through difficult situation. We have been leaving together for 8 years now and i have got tested positive to chlamydia and my wife negative. Since we are together I swear to God that I have cheated on her but she does not believe me . Now we are getting closer to a separation or divorce . can you please me to know on how could I get tested positive and not my wife while we even have two child ?

Summarized question: What causes chlamydia?