My wife and I began dating in 2001 and we were married in 2002. I haven't had sex with anyone except my wife since we started dating in 2001. I was 25 years old in 2001 - prior to my relationship with her I had been sexually active, having had sex with multiple women. My wife discovered genital warts a couple weeks ago, and her doctor just told her yesterday that she has HPV. He also told her that she contracted this infection from me, sometime in the last few months. The doctor stated that I must have cheated on her recently, and I know this to be absolutely untrue. Is there any medical explanation for this? I am the only sexual partner my wife has ever had, but I know that I have been faithful. I am anxious, confused, and frustrated.