Can anyone think of a song, from a stage musical or film musical, where the gal loves the guy, but the guy is so oblivious that he assures her that there's a guy out there who's waiting to find her? Ideally, he and she find themselves dancing while he (or they) sing.

Maybe something from Judy Garland and Micky Rooney?

I'd like to find such a song to illustrate my similar song, "Hey, Pretty Girl," where the two are unwittingly waltzing as he sings.