Spencer Pratt Splits From Heidi Montag: "Speidi" No More?

NEW YORK (CBS) Hearts are breaking in "The Hills" today as sources speculate that Heidi Montag and Spencer Pratt have reportedly parted ways.

Montag, 23 and Pratt, 26, have apparently gone solo with published reports saying that hubby Spencer vacated the Pacific Palisades, Calif., home the two shared.

PICTURES: Heidi Montag & Spencer Pratt

RadarOnline.com speculates through a Spiedi insider that "erratic behavior" on Spencer's part drove wife Heidi "to the edge." Was it control issues?

Heidi and Spencer made news in May when the pair called the police on Heidi's mom after she showed up to their home.

Last Tuesday, the 23-year-old reality star turned "Superficial" singer tweeted to her twitter flock : "PS: I am not Heidi Pratt, I am Heidi Montag."

Hear her roar, Spence.

Whether this latest split is a publicity stunt remains unclear. Heidi has reportedly packed her bags and is off to co-star with friend Jennifer Bunney in an upcoming reality series. As of today, Spencer still links to OfficialHeidiMontag.com as the website on his twitter profile.

Heidi fuels further suspicions of a possible moving on through tweeting the same message in less than an hour from each other :"This is going to be the best summer of my life!!!!" ; later adding "Girls Only!!!!"

Jennifer Bunney seems to fall on the side of a Speidi split with her tweet alleging: "When all this press started I asked Heidi what she wanted me to say and all she said was the best thing u can do is just be urself. So that."

Montag and Pratt married in April of 2009. The two starred together on several seasons of MTV's "The Hills."