i love walking in the rain because no one knows i am crying

I'm not sure, but there is an old Temptations song (it's called 'I wish it would rain') that is about that, so maybe that was someone's inspiration for the quote.
here are some of the lyrics, i've capatalized where it makes references to it:

Day in, day out, my tear stained face
Pressed against the window pane.
My eyes search the skies, desperately for rain.
'CAUSE RAINDROPS WILL HIDE MY TEARDROPS
And no one will ever know.
That I'm cryin'... cryin' when I go outside.
To the world outside my tears, I refuse to explain.
Oh, I wish it would rain. (Oh, how I wish that it would rain)
Ooo, baby.

Let it rain, let it rain.
I NEED RAIN TO DISGUISE THE TEARS IN MY EYES.
Oh, let it rain.
Oh, yeah, yeah listen.
I'm a man and I got my pride.
Give me rain or I'm gonna stay inside.
Let it rain.