Player?

Dan

So I met this guy who is known in my school for being a player and cheating on past girlfriends. We started talking and I was looking for no more than a fling. Then after hooking up a few times he asked about if we should become official. I was taken back because I assumed that was not what he wanted I asked him about the cheating and playing rumors and he fessed up to all of them and talked about how ashamed he is and wants a much better relationship this time. Do you think I should believe him?