I've Grown Accustomed To Her Face lyrics

Ive grown accustomed to her face,
She almost makes the day begin
Ive grown accustomed to the tune
She whistles night an noon

Her smiles, her frowns,
Her ups, her downs
Are second nature to me now
Like breathing out and breathing in

I was serenely independent
And content, before we met
Surely I could always be that way again, and yet,
Ive grown accustomed to her looks
Accustomed to her voice
Accustomed to her face!

Submitted by Guest

What do you think is the meaning of I've Grown Accustomed To Her Face by Perry Como?