Analysis of Little Bit

I know a woman called Little Bit,
Her love is as deep as a bottomless pit,
Dont know how she got this name or wht,
But it is hers until the day she does die.
She is a loving person this is true,
But sometimes she does get blue,
Times are hard she does amit,
But she is not one that will quit.
I love this woman called Little bit,
Even though I am married this I amit,
The urge to tell my wife you can smother,
Because Little Bit is my mother