My advice is to run from this guy, he's obviously a "player" and he likes to use his women in the sack. You'll never get the right commitment you want from a guy like this. I would tell him you've met someone new and tell him it's over. I know you are connected and have fallen in love with him but he's not right for you. Love isn't painful and hurting, you deserve a loving healthy relationship. There are good guys out there that will be commited and faithful to you and only you.