The saddest part in life is saying Goodbye to someone you wish to spend your lifetime with. The saddest part in a life would be to spend a lifetime with someone who didn't really want to spend theirs with yours.
Too sad and full of regret to do anything. Ever feel like that? Take my heart, it's broken and in a sense betrays you? Do you sometimes feel haunted by regret and despair? We all get sad from time to time, problem is when it becomes dominate.