Al's fifth wife's name is Maxine. They met in a tattoo parlour in New Jersey. She apparently bares a strong resemblance to Diane Frost (Jane Sibbett). They divorced because Al was 99.9% sure that she was having an affair. After their divorce, Al found out that she did not.
Al: There are five stages of love: the first is denial, then the second is sex, then there's acceptance, then there's divorce, and then there's more sex, if you're lucky.
Sam: Who wrote this textbook, you or Zsa Zsa?
Al: Wow, thank God my wife Maxine couldn't kick like that!
Sam: (to Al) Sex?!
Diane: (derisively) Hah! Please...
Al: (excitedly) See?! She wants it too!
Sam: This is the leap from Hell! When is it going to end?