You're a real sweetheart

When my pals turned me down
You're the best pal I've found
You're a real sweet heart
When my darkest day came
You smiled just the same
You're a real sweet heart
But now that I find
Fate has been kind
I'll build you a love nest
That's all silver-lined
And I'll work and I'll slave
For the things that you crave
You're a real sweetheart