It ain't no big thing (but it's growing)

You're losing interest in me and it's showing it's not a big thing but it's growing
The pain of heartbreak I've just started knowing it's not a big thing but it's growing
Every day the hurt grows bigger than before
But I'll pretend that I don't notice if I can hold you one day more
You got that look of someone who is going you're gonna leave me and it's showing
A little tear I can feel start to flowing it's not a big thing but it's growing
I've got a heartbreak now and it's showing you're gonna leave me and it's showing