Drew Barrymore is single because she can't find a man who deserves her. The "He's Just Not That Into You" star is only interested in dating her perfect man and refuses to waste her time on unsuitable lovers.

She is quoted as saying: "I believe there are no rules. I think, at a certain point something clicks, and you're just not willing to accept or give less than what your heart desires or less than what you deserve."

Jennifer Aniston is good at giving relationship advice. The divorced Hollywood star believes she is so good at helping people through their love woes, she could easily have made a career from it.

She said: "I feel I have an ability to understand relationships and see things clearly. I've always tried to be supportive to the people who are close to me and I like to think that I give good advice. I think I'd have made a good therapist if I hadn't become an actress."

Drew Barrymore's friendship with Cameron Diaz helped her overcome her troubled childhood. The 33-year-old actress insists her "Charlie's Angel's" co-star helps keep her sane and is one of her closest confidantes.

She said: "Cameron's one of the greatest friends anyone could ever have. She has so much love and positive energy to her. I've always felt like she's my big sister. "