Just up and leave

I don't understand why you keep going back,
Tell me what makes you want to stay so bad,
She's full of hatred,
Of jealousy,
Why do you continue to put up with it,
The longer you stay the harder its going to be to let go,
So do it,
Just up and leave,
She doesn't deserve your chivalry,
You continue to give,
But never recieve,
So please do this one thing for me,
Tell me why.