Meloboy

Hey guys, so a few days a go I heard a song on the radio, and I've had it stuck in my head for the past few days and I remember hearing it when I was a kid, but I really don't know the title, or remember any thing much with the lyrics, all I know is that it had the theme of a married guy who meets a girl on either the train or bus to work and begins to like her or something, and I cant remember quite clearly but I know he ends up letting it be as he was already married or something. This is kinda vague I know, and I just need to know e title as I really cant seem to find it anywhere even goggling it failed. I even went out of my way to make an account here just to ask about it. Sk yeah thank you ahead for the answers.