How often do guys re-date girls?

Well there is a guy who has been an amazing friend to me this year... But I think I like him a lot more than a friend.. And we are both flirtatious people.. So I never know if when he is talking to me if he likes likes me or not.. And he went out with a girl and the broke up a couple of months ago and he already went out with 2 other girls since than.. But now he is single.. And I am scared he might like the girl again instead of me.. So statistic wise how often do guys re-date girls