Heidi Montag: Moving in With Jen Bunney, Filming New Reality Show

The not entirely shocking break-up of Heidi Montag and Spencer Pratt has yet to generate a formal response - or even a trademark Tweet - from the latter.

Some decry the news as another PR stunt, but TMZ broke the story citing close sources, including Heidi's own rep, saying things had been crumbling of late.

Stunt or not, it looks like she's moving on.

"This is going to be the best summer of my life!!!!" Heidi Tweeted, and an old pal / The Hills co-star claims the 'Tag's summer plans are already in place.

"Heidi and I are moving into a Malibu beach house this summer," said Jen Bunney, who adds that she and Heidi Montag will be filming a new reality show.

“We're really excited to do girly things and show people who we really are, that we're really fun, sweet and loyal girls." So loyal you ditch your husband?

Jen Bunney PicNot Heidi Pratt

BRING BACK THE BUNNEY: Heidi Montag reportedly will - to life and TV.

Jen Bunney added that Speidi are not "legally" separated, but "she is moving in with me. It's just her being able to have some freedom from marriage."

Sounds like a separation to us ... we think. Even though Heidi recently proclaimed she has no friends, it looks like she has at least one. A good one, too.

“Our show is going to focus on our friendship, getting through things with each other like marriage stuff and boyfriend stuff," adds the Bunney, rivetingly.

Friday, Heidi's rep said she was moving out "due to all the fake bad press that Spencer Pratt controls" and "wants to focus on her acting career" alone.

Probably for the best. Things were getting bad.

The couple hired ex-Marines to guard their L.A. home, spent $400,000 on healing crystals and even called the cops on Heidi's mom, Darlene Egelhoff.