Heidi Montag and Spencer Pratt have yet to personally comment on Friday's announcement (from Montag's rep) of a breakup.

As some decry the news as another publicity stunt, 23-year-old Montag emerged on Twitter late Friday with a cheerful announcement: "This is going to be the best summer of my life!!!!"

And an old pal -- and one-time Hills costar -- claims Heidi's summer plans are already in place.

Jennifer Bunney, who appeared in earlier seasons of The Hills, told Radaronline, "Heidi and I are moving into a Malibu beach house this summer."

The cameras, naturally, will be rolling: Bunney says she and Montag will be filming a new reality show. "“We're really excited to do girly things and show people who we really are and that we're really fun, sweet and loyal girls."

Bunney added that Montag and Pratt, who wed in April 2009, are not "legally" separated.

"But, she is moving in with me. It's just her being able to have some freedom from marriage and for us to work on our friendship and focus on things we want to focus on."

The new show will likely deal with Montag's marital situation, she claimed. "“The show is going to focus on our friendship, getting through things with each other like marriage stuff and boyfriend stuff."

A rep for Heidi broke the apparent news to TMZ Friday that ""Heidi is looking to move out due to all the fake bad press that Spencer controls...She's tired of it and is looking for a place and wants to focus on her acting career."

As reported in Us Weekly, many former friends and family members worried that Montag was isolated and "brainwashed" by Pratt, 26. The couple hired four ex-Marines to guard their L.A. home, spent $400,000 on healing crystals and shut out nearly all of their loved ones -- including Heidi's mom, Darlene Egelhoff.

Tell Us: would you watch a new Heidi show?