Heidi Montag and Spencer Pratt still living together

Heidi Montag and Spencer Pratt have been living together for the past few months — despite announcing they had split! The pair — who announced a few months back that their marriage is over — have reportedly been sharing the same Malibu house.

“Spencer thinks this is how he is going to get famous again, they have staged the entire thing separation/divorce thing,” a source told RadarOnline.

“Heidi and Spencer have been living together in a house in Malibu since the original break up.

“Heidi never leaves the house. She has changed her phone number and her e-mail several times. She doesn’t even speak to [her sister] Holly or anyone in her family.

“Heidi apparently has another piece of tape over her nose and she is complaining about her weight again”

On Friday, Montag filed for divorce.

Heidi — who legally separated from Spencer two months ago — cites the usual irreconcilable differences in the divorce petition filed in Santa Monica, Calif., Superior Court.

“Heidi has amended her petition for separation and today has filed a petition for dissolution of marriage from Spencer Pratt,” Montag’s lawyer Jodeane Farrell told People magazine.

“The couple has agreed they would like their divorce to be finalized in a timely manner in an out of court settlement. Both parties are amicable with each other and over the possibility of finalizing their divorce.”