Robert Pattinson was surprised at how strongly Bella feels for Edward in Twilight.

He thinks that most seventeen year old girls won't want to commit.

Rob told Common Sense: "I guess it's something about soulmates, I guess a lot of it is about trust but I mean it's more just the story of a relationship.

"In simple terms it's just about two people who meet each other and are willing to lose everything in order to keep that.

"It's strange because for one thing the girl is so young and is so ready to commit to a permanent state.

"I mean she's just saying 'I want to die, I want to die for you', which is very unusual at seventeen."

Rob hasn't experienced love like Bella and Edward himself.