Consider the following relationship scenario: Jamie and Sam are in a committed and loving relationship. Jamie has always thought of Sam as a supportive, loving, and dependable partner. Recently, however, Jamie has been experiencing doubts about their relationship – there are times that Jamie feels secure in their relationship, but there are other times that Jamie questions where she can truly rely on Sam and feels insecure in their relationship. This relationship scenario is not uncommon. Relationships often feel turbulent and tumultuous.