Baby Plays Around lyrics

It's not open to discussion anymore
She's out again tonight and I'm alone once more
She's all I have worth waiting for
But baby plays around
And so it seems I've always been the last to know
To hold on to that girl, I had to let her go
I wish to God I didn't love her so
'Cos baby plays around
[ Lyrics from: http://www.lyricsmode.com/lyrics/e/elvis_costello/baby_plays_around.html ]
I try to be strong hold on to my pride
She doesn't even know it's wrong, how much
I hurt Inside
And heaven knows I've tried
But baby plays around. just a plaything
It's hard to reconcile the facts I'm facing

It's not open to discussion anymore
She walks those shiny streets
I walk the worn out floor
She's all I have worth living for
Baby plays, baby plays around