Although those close to the Twilight stars believe this is just a temporary break-up, one source says that K-Stew is "heartbroken" and "so sad" over the split.
The source continues: "They are going to stay living at Kristen's house because of the dogs. It's not fully over or he would have moved out."
The couple has been through their fair share of ups and downs and the source insists that this is just a bad time for the pair. The source says the root of the split is "priorities" and that R-Pattz and Kristen had been trying to iron out their issues until yesterday and that the stars believe this is the best solution for the time being.
But don't worry, the source has a positive prognosis for the relationship.
"They will be back together in no time," the source said.