Williams, 24, joined her soon-to-be husband on the program as he promoted his new memoir, My Cross to Bear, and when asked what she might think of becoming wife number seven, he quickly rose to defend their May-December romance.
"That's not what she's becoming," he responded. "She's becoming wife number one. I don't have a wife. Haven't had one for years."
To further his point he added, "This time, I am really in love."