Misunderstanding Lyrics

Lyric discussion by miketorello 

Cover art for Misunderstanding lyrics by Genesis

Didn't you notice that near the end the lyrics say:

Still don't believe it He was just leaving

I think this song is about attraction between a guy and another guy (he and not she was leaving), but now one of them thinks there must have been a misunderstanding...

@miketorello Interesting viewpoint but the previous line explains that:

I rang your home but got no answer Jumped in my car, I went round there

The singer drove to her place only to see some other guy leaving her home.