To help form a relationship between the protagonist and the audience, Zoe, Jess and I like the idea of using non-diegetic narration. I think it's a great way to introduce the protagonist and the thoughts they personally hold, this helps the audience to relate and engage with the characters. This is particularly important in rom coms as most women like to be able to relate to the protagonist as it helps them feel a sense of realism about the film. Therefore, they can believe that what happens to the characters could also happen to themselves. This method is used in films like...
The Holiday where we are instantly drawn to the disheartened, realistic character Iris, who narrates the opening
and Bridget Jones, where we see Renee Zellweger playing the unfortunate, unlucky in love protagonist.
Narration is used in the beginning of both of these examples and is also used throughout both TV series and films of Sex and the City, which has Carrie Bradshaw narrating the story of herself and her friends.