The girl dutifully goes to live with Cobra Commander and finds that her every need is met. However, she is miserably lonely, because there's nobody else in the entire castle except for her and the snake, and snakes are notoriously bad hosts. To make matters worse, each night the snake monster gradually moves his bed closer to hers, like a vicious bonershark circling a capsized yacht.
Finally, the snake cuts the bullshit and slithers into her bed. The next morning, he allows her to go home to visit her family, but tells her that if she doesn't return to his castle by nightfall, he will kill himself.