During this 11 yr period, what happened to Estella? What does Pip notice about her when he meets her at the site of Satis House?

Estella looks pretty worn out. She looks as if life had taken its toll on her,

"The freshness of her beauty was indeed gone, but its indescribable majesty and its indescribable charm remained. Those attractions in it, I had seen before; what I had never seen before, was the saddened softened light of the once proud eyes; what I had never felt before, was the friendly touch of the once insensible hand."

Biddy also fills Pip in on Estella's miserable life,

"I had heard of her as leading a most unhappy life, and as being separated from her husband, who had used her with great cruelty, and who had become quite renowned as a compound of pride, avarice, brutality, and meanness. And I had heard of the death of her husband, from an accident consequent on his ill-treatment of a horse. This release had befallen her some two years before; for anything I knew, she was married again."