A friend of a friend once told me that the original title of this song was “Knowing She Would.” It’s not true — I have no idea where he got such a notion, but I still substitute those words every time I hear the song. It works. Isn’t it good, knowing she would? And the song is about an extramarital affair.
Anyway, especially with the substituted lyric, this song always makes me think about sexual tension. You know there are certain people who we just feel some animal attraction for. And whether we act on that or not, it can be a bit of an ego boost. The knowing.