There are millions of people that are in love all around the world. We can't count all of them because more and more relationships start every day I'm sure.
If it doesn't have anything to do between the two of you and your marriage then let the past stay in the past. Everyone has a previous dating life. Remember, he chose you! Some people have many...
Sorry, it's just like saying, how many icecream lovers are out there. There's no way to tell. Plus you can not count from the amount of sales of pokemon stuff, because thay might be buying it for...