It could have been that one boyfriend or your husband - it's a virus - it becomes active and then resolves - HPV is a blanket name for over 40 different strains. My sister in law had never been sexually active until she went away in university and did a course in Europe - she met a guy they became involved (they long distance dated for several years - got engaged - broke up) after they broke up she was dx'd with HPV because she had some kind of an outbreak. It only takes once and sadly HPV doesn't show up on any tests except for a cervical cancer screening in women. Or a biopsy of cancerous tissue. Many people who caught HPV can be asymptomatic - and never know they've been exposed.