The information in this article is from a fan game or fan fiction and is therefore not canon.
Bambi is the woman Graham would have married if he divorced Valanice after she disgraced herself in his presence by wearing nothing but her underwear. She found 'Vannie' (her nickname for Valanice) cute and would like to have a threesome with her and Graham.
She would have also married Graham, had Valanice had not warned him of her return, after he presumed her dead. She got jealous after Valanice return and broke the magic mirror.