Who is Dora from The Case of Comrade Tulayev and what is their importance?

Dora is Rublev's wife. She has calm, gray eyes. Dora is a smart woman who loves her husband dearly. She is relieved every day when he comes home to her and silently fears the day that the secret police will come and take him away. When that day comes, she remains calm, but her fear is obvious in her pale face and cold lips when she bids Rublev a hasty goodbye. Rublev knows that Dora is very strong underneath her outward gentleness. She is deported after Rublev's arrest, and she writes many letters to the Committee protesting his innocence.