Ann loved Connor so much that she was ok that it was hurting her. Ann was broken so Connor could be whole. Connor had his bad days and she was always there for him to comfort and make him happy. Ann was a great girlfriend while Connor was horrible to her.
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.