And you've never showed symptoms? Usually the HPV virus shows itself in a few months and clears itself within 2 years, so providing you've had no visible symptoms, it is unlikely you are infected with the virus or maybe the virus has been cleared in your system and is laying dormant.
It is up to you if you tell future partners, its difficult because you cannot be sure if you contracted the virus.
It's been 2-3 years since I had sex with my ex-wife. As far as I know she only had the low risk strain at that time. However, since she was initially misdiagnosed as having a "skin tag," rather than a genital wart, I probably did have unprotected sex with her when she was symptomatic.
How long has it been since you last had sex with your ex wife? Did you sleep with her when she had the high risk strain and the low risk strain? If you slept with her when she was diagnosed with warts, did you have unprotected sex whilst visible symptoms were showing?