I have had one sexual partner in my entire life

Patient: I have had one sexual partner in my entire life. I have been with my husband for 35 years. I had my last pap 6 years ago and it was hpv negative. I have suspected my husband had an affair 5-6 years ago. I recently had a pap that was hpv positive. My husband claims he contracted hpv over 35 years ago. Is this possible?

Doctor: