How did you break up with your fiance?

Idk--he still ogles women when we go out when I have asked him to stop, comments how pretty other women are, ex-girlfriends, coworkers, women that he sees in a public place--just yesterday he said to me--she is pretty---it was a girl that won a title and she was standing up to be acknowledged by the members and we just happened to sitting close by her and her parents and I said, yes, she is pretty. I wanted to say she is as pretty as that one member is handsome that was sitting down below us from the balcony, but I didn't want to start anything. He takes pictures of other women in their bikinis and butt shots when we are on vacation together. Wants to keep his ex-girlfriends birth-date as a password when he told me he had changed them all to me and he didn't--I came across the folder and asked him about it. There is still a picture, a far away shot, of his ex-girlfriend up at his folks cabin that they put up after when he asked them why he took her pictures down, with me standing right there next to him-this was before we were engaged. Yet, I know there is a lot worse things that a man can do. He doesn't do drugs or drink. He just really likes the ladies. He keeps talking about how we should be married by now--we have seen each other for two years and now live together. Every day he tells me he loves me. I really feel you need to get to know a person very well to make such a life long commitment. I don't know what to do. :(