robstennotdunzo.jpgDespite reports that they've broken up, Twilight co-stars Kristen Stewart and Rob Pattinson are definitely still on.

Yesterday, they left the Vancouver set of Eclipse together, grabbing a flight that landed in LA at 3:30pm.

A passenger onboard the plane tells exclusively, "Rob and Kristen were together in the plane, sitting next to each other. They were chatting the whole ride but the second we pulled up to the terminal, they got into this incognito mode -- they pulled their hoods over their heads and the second they walked into the airport, they went their separate ways."

The couple parted ways at the airport, jumping in separate limos that took Kristen to her parents house and Rob to a hotel.

However, they reunited this morning -- X17 is with them now so stay tuned and we'll bring you the deets as they come in!