Lyrics of Happy kind of sadness

It's a happy kind of sadness when i think of you
And a lonely kind of togetherness when your company's the blues
Now all you love has ended as you left me for someone new
It's a happy kind of sadness when i think of you
Well you're happy when you think of all the good times and the sweet love you had
But you're sad when you want her and she's not there
It's a happy kind of sadness when her love turns cold
Oh i laughed and made jokes about it but there's one joke that i ain't told
Oh how i cried all the nights long if that's so funny why am i so blue
It's a happy kind of sadness when i think of you
( steel )
Well you're happy...