Some doctors think that once you are infected that it's with you for life... I support this theory as well. I know that your immune system can fight it off but there is no actual proof that it competely removes the virus. meaning it's just lying dormant. some people only ever have 1 outbreak. Others have recuring... wether it's 3 times in 22 years or 40 times in 10 years. Also some people have treatment resistant HPV, the doctor treats and yet the warts stay. there are about 30 strains that effect the genitals.
When my husband had one show up his doctor removed it and said "it's just a flat wart, nothing to worry about"
later I had 2 pop up. went to the OBGYN I was about 3 months pregnant with our 2nd Daughter at the time. He said "well pregnancy hormones are going crazy and that's most likely why you had them pop up now.. because you didn't have an outbreak before. You shouldn't see them unless you get pregnant again but that's not even a guarentee, you may never see them again."
So with that being said.. there is a few types that cause cervical cancer. If you have type 16 you can not get reinfected with type 16. Thats it.. you have it. But you can have type 16 and get type 18. which would mean that there would have to be a "new introduction" of the virus. What I believe is going on is that your wife has a recuring one..
Personally I didn't accuse my husband of cheating when his popped up and I knew nothing about HPV... when I had some pop up even the OBGYN said that it does not mean that he cheated. Since his showed up first and I never had an abnormal pap... We "assume" he had it first (he also gets a wart here or there on his hands but they can't spread to down there)
The truth is that HPV can show up 2-3 months after you are infected with it... but HPV also has this uncanny ability to lay dormant for however long it wants. Some people have it and never know (meaning I could have had it first, given it to my husband, and he had the first symptom. then because he had an active one.. and you can guess how that was found.. Since there was skin to skin contact and my hormones were going nuts because I was pregnant it triggered one to pop up) but that's just one theory.. the other is that he could have had it first. Ether way we both have it now and hopefully it will never pop up again.
The doctor also said that there is no way to know which partner you got it from. Some outbreaks are soo small you can't see them unless the doctor uses a magnifier.
With that being said your first partner could have given it to you and you would have never known because you wouldn't have seen them... the types that cause warts DO NOT cause cancer. Therefore you can't tell who has it and who doesn't. You might not have never given it to your wife... She might have had it since her first partner or anyone in between (that's not meant to start trouble) Then again You could have had it from your first partner or anyone in between. This is all what My OBGYN had told Me and my husband. There is also a test they can do to find out what strain you have. Although it can not determine wether it will be recurant or not because that depends on the individual. But if she only has one strain then the air should be cleared of accusations.. then again there is always the chance that ether of you could have had 2 strains to begin with (ether one of you had 2 strains or you each had 1) It really shouldn't matter. Unless an affair has happened in the past the subject should never come up when it comes to HPV there are just too many possibilities without the thought of an affair.
Now I can say that the thought of "did you cheat" came into my head when it happened to us. So I can sympathize with your wife. because I can only imagine having a high risk strain and it recuring and "wondering why does it keep coming back?" and that question will lead any destraught person to the other question..
I hope the information helps and I wish you both the best.. Tell your Wife to Hang in there