Is you is or is you ain't (my baby)

I got a guy who's always late
Every time we have a date
But I love him
Yes I love him

I am going to walk right up to his gate
To see if I can get it straight
Cause I want him
Oh yes I'm gonna ask him

Is you is or is you ain't my baby
The way your acting lately makes me doubt
You have always been my baby, baby
Seems the flame in your heart has gone out

Well a fellow is a creature
Who has always been strange
Just when you think you're his
He's gone and made a change

Is you is or is you ain't my baby
Has my baby found somebody new
Or is my baby still my baby too