They are nurturers so they surround themselves with people, whom after a while can offend or hurt a cancer without even knowing they did so, therefore Cancer's protective shell keeps them safe from hurt. They are complex, fragile, unpredictable and temperamental and need constant support and encouragement, more then any other astrology signs, Cancer needs to be needed.When cancer gets the support it needs, it has a tremendous amount to offer in return. When cancer gets offended, they tend to sulk instead of confronting the persons face to face. This needlessly prolongs the pain and suffering. Cancer is very possessive, not just with material possessions but with people as well. Cancer will always want to stay in touch with old friends and anyone who has ever been close to them, because it is easier to maintain a friendship then attempt to learn to trust a new person.