time:
So my vacation fling who was from poland asked me how many sexual partners I have had since him?
What does this mean? What is he trying to find out?
In all liklihood he is reflecting upon the relative ease with which he was able to depants you. After all, as your own testimony indicates, the tryst was a mere "vacation fling," so he realizes that, based on his experience, you do not appear to be a particularly difficult nut to crack, metaphorically speaking.
And so, by asking you that question, he is looking for validation of your promiscuity on one hand, or, alternatively, should the quantity be zero (or an acceptably minimal amount, from his perspective) he will be consoled by the "fact" that he was not hoodwinked and "used" on his vacation.
Any discharges or irregular sensations experienced by this gentleman subsequent to the vacation are of course supplemental issues, however, they are beyond the scope of this thread.
Take care, and God bless.