Heidi Montag Continues to Rip on Lauren Conrad

It'll be a cold day in The Hills before Heidi Montag becomes best buds with her former roommate Lauren Conrad.

Asked by People if there is anything Conrad, 21, could do to patch up their highly strained friendship, Montag, 20, bluntly replies:

"No, I don't think so."

The pair found fame last year on MTV's Laguna Beach spinoff, which also managed to chronicle how they became such bitter enemies.

The beginning of the end came in Season 2 when Montag began dating Spencer Pratt. Speaking on Wednesday during The Hills' Season 3 premiere party at the LG House in Malibu, Montag attended with Pratt - now her fiancé and "music manager."

"I have my life, she has hers, and I'm honestly so busy with music, I don't have time for a feud," Heidi says, adding that living with Pratt beats the hell out of sharing a pad with Conrad.

"It's way better. You don't have all that catty girl bickering. It's calmer, nicer. We are on the same agenda, you know? So it is like our days are the same."

It's an agenda, we'll give her that much.

Such is the bitterness between the girls that Heidi Montag has a single word reply when asked if she has any good memories of Conrad: "No."

"I'm just moving on. Moving forward. My life is the best now it has ever been so that is all I'm thinking about," she says.

But there may be hope yet. For all the acid among the former friends, Heidi Montag does at least offer a small olive branch in the direction of Lauren Conrad.

"If she really came around I'd always be open to talk to her," Montag said.

Six months ago, Conrad was insisting she was still friends with Montag.

But then, when Brody Jenner, whom she dated briefly last year, made unflattering remarks in Details alongside his pal Spencer, Conrad was quick to lay the blame on Montag's man.

"Honestly, I was nauseous reading it," Conrad said. "I do feel a little bad because if you read almost every quote, it's Spencer. Brody is a better person without Spencer."

Conrad's other ex, Jason Wahler, was also at the premiere event, and told the magazine that he's "sick" of the battle against his former flame.

Earlier in the day, he had gone as far as saying he'd take a public lie detector test regarding the sex tape rumors Pratt has been peddling.

"It's been going on for like two months now. I'm over it," Wahler said.

Spencer Pratt seemed less inclined to submit to the test when asked about it by People, he responded, "It's their lives. No comment."