WTF! Heidi and Spencer are back together?!

37671, LAS VEGAS, NEVADA - Friday May 28, 2010. FILE PHOTO dated Saturday February 13 2010. Heidi Montag has allegedly called it quits with Spencer Pratt, with reports that she is looking for a new pace to live in Malibu. Heidi Montag and Spencer Pratt share a romantic Valentine's dinner in Las Vegas. The couple later hosted an evening at the Pure nightclub inside the Ceasar's Palace resort. Photograph: Kevin Perkins,

Just when we thought Heidi had seen the light and got rid of husband Spencer Pratt, she seems to have lost it all again since reports claim Speidi is back on!

Having ended their separate stay in Costa Rica, Heidi Montag and Spencer Pratt were together again in Carpinteria, CA on Sunday afternoon.

Stepping out for the Avon Walk for Breast Cancer, the pair looked happily together – which comes after a supposed blowout over an alleged sex tape in which Spencer was using as leverage over Heidi.

Aside from their relationship peculiarities, Miss Montag is currently dealing with a court case against “The Hills” creator Adam Devillo.

Last week, Heidi tweeted about the situation, “Sheridan granted by Judge to sue creator DHW! YES! This means my sexual assault suit against Hills creator Adam Devillo will also go to court”

A day later, she added, “my team has informed me that my suit against Adam Devillo is for Sexual Battery not Sexual assault. Major difference is assault is verbal…”