Griazabella is an old delapitated cat who has had a very good life. She has been in a few scraps in her life and has probably had a few regrets too. She may now at this point in her life be a little tired and lonley. Grizabella probably feels regretted because every time she appears the other cats shun her and she just wants to be loved and involved in the life of the community of the others and they don't want her around.