Will Robert Pattinson & Kristen Stewart split after Twilight?

Kristen Stewart has reportedly told co-star and rumoured boyfriend Robert Pattison she fears they’ll split after the end of the Twilight series.

Now magazine’s source revealed: “When they were apart this summer, it was extremely hard on them both,”

“Rob was in LA working with Reese Witherspoon on Water For Elephants and if he went out for an evening and didn’t answer his phone, Kristen would be in tears, convinced he was with Reese.

“Then she was in Montreal filming On The Road with Rob’s best friend Tom Sturridge and Rob was getting really moody when he was hearing what fun they were having.

“He wound himself up so badly he even flew unannounced to the film set to see what was going on.

“They had so many rows but the problem is they’re so madly into each other that the relationship is very intense and fiery.

“Now they’re together in Louisiana and Brazil on Breaking Dawn, they’re very loved-up and were spotted getting very cozy in between filming.

“So after a lot of heart-to-heart chats, they’ve put a plan together to prevent the rows when they’re apart.

“Kristen’s even suggested they could get married to show how committed they are.

“Rob says they’re too young but he doesn’t want to lose her.”

The next installment in the the Twilight Saga, Breaking Dawn – Part 1, is expected in 2011.