Your ex may have been infected with another strain as well that causes warts but like you she never developed warts
since most people tend to be asymptotic.
I would not worry who i got the warts
from, the thing you should do now is treat the warts. Aldara helps the immune system recognize the infection so that it may fight it, also it may take up to 16 weeks of use for the medication to work. Usually Aldara works better in women than men, not sure why.