London: Actress Kriten Stewart has reportedly ended her romance with `Twilight` co-star Robert Pattinson.
According to sources, Stewart has parted ways with Pattinson because she wanted "time out from their stormy romance," reports a website.
"Kristen told Rob she`s finding the relationship very hard at the moment and that while she`ll always see him as a friend, she just can`t be his girlfriend anymore," a source told Britain`s Look magazine.
"Kristen has put their relationship on hold until after the final movie in the `Twilight` saga has wrapped.
"Maybe when they`ve finished filming and promoting the film, they`ll be able to make the relationship work," the source added.
The couple is said to have grown sick of each other.
"Rob and Kristen have literally grown sick of each other," said one insider. "They are virtually seen together in `The Twilight Saga: Breaking Dawn`, and this has to be the most intense shoot yet. Everyone is wondering how they`ll survive."
"They`ve started sleeping in separate bedrooms because, after a long day of playing a married couple with a child, they`re exhausted and the last person they want to see is each other. They`re confused about the state of their relationship and whether they`re ready for the long haul," added the insider.