Credit: Jean Baptiste Lacroix/; Stillo

Spencer Pratt's attacks on wife Heidi's family get crueler than ever on tonight's episode of The Hills.

Heidi's mother Darlene Egelhoff has openly expressed outrage over her daughter's decision to undergo 10 plastic surgery procedures in a day. ("How do I go and say that of course I thought you were more beautiful before?" she said on the Apr. 27 premiere. "I thought you were younger, I thought you were fresher-looking, I thought you were healthier.")

Spencer, 26, couldn't care less what Egelhoff thinks. "She's not God," he snaps on tonight's show. "She didn’t make Heidi. She's just a vagina!"

Though his relationship with Egelhoff soured in 2008 when he and Heidi secretly eloped to Mexico, she was supportive when the couple officially tied the knot last year.

"I'm just so happy they found each other," she told Us. "I feel like I've passed on the job of taking care of Heidi to him, and it's a big job! He's the only other person alive who could do it."