Welcome to the forum. Thanks for your question.
Questions about informing partners of past HPV infections are fairly common on the forum. It is discussed in the threads linked below, and other discussions linked in one of those. In addition, you can use the forum's search function -- try terms like "HPV informing partners", "warts, sex partner", and so on.
http://www.medhelp.org/posts/show/763984
http://www.medhelp.org/posts/show/763292
http://www.medhelp.org/posts/show/1269909
The main theme is that you are under no ethical obligation at all to inform future partners of any HPV infection diagnosed in past years and now gone. You probably have read that HPV can persiste indefinitely and can recur later. That's true, but it isn't the usual situation; HPV DNA may persist, but most infections do not recur, at least not at a level that can be transmitted or that will cause recurrent disease. Equally important, you can assume that your future partners have been exposed, probably repeatedly. Virtually all sexually active persons acquire several genital or anal HPV infections anyway -- and informing people of past infections has absolutely no effect on the chance they will be infected (again?) in the future. This is especially the case in gay men, most of whom probably experience even more HPV infections than most women or straight men.
Of course, you may decide to tell a partner anyway -- out of kindness and openness in relationships, especially a partner that may have promise for a committed relationship. But this is a relationship issue, not one of disease prevention.
I hope this has helped. Best wishes-- HHH, MD