Drew Barrymore and Will Kopelman will stay close following their split.

Drew Barrymore

Drew Barrymore

The 'Miss You Already' star and her husband of four years announced their separation last week but they plan to stay friends as they reportedly still have a lot of mutual respect for each other.

A source told the New York Post's Page Six column: "Will became close with all of her friends, and she his. They have never at any point [in their marriage] lived separate lives ... This is just a case of two people mutually falling out of love, and while opposites may attract, it's often unsustainable.

"He travelled to live with her on every set on her movies, to help take care of their kids on those locations. He was also always present as a fixture in support of her beauty and wine businesses. His father [former Chanel president Arie L. Kopelman], has even been an active sounding board for her makeup line."

Meanwhile, the 41-year-old actress is keen to keep things "cordial" for the sake of their two daughters, Olive, three and Frankie, 23 months.

An insider shared previously: "[Drew] really wanted to give her daughters a normal family life, and she will do everything to make sure they [have one]. They're on good terms and are trying to keep everything cordial for the sake of the girls.

"They'll keep their apartment they have on the Upper East Side [of New York City] for now. Olive is in school here [in NY], but also is enrolled in L.A. Drew was never really based full-time in NYC - they were always back and forth."