The Wasteland: Sadness and Grief

Section II of The Wasteland refers a lot to many different feelings such as rage, angriness or loneliness. The first example of sadness in this two sections comes in the first stanza of section II:

"In which sad light a carvèd dolphin swam." (line 96)
"Filled all the desert with inviolable voice
And still she cried, and still the world pursues" (lines 101-102)

This lines make a lot of connections to sadness and a feeling of grief, even though the character has a lot of jewelry, perfumes and even a burnished throne, she is sad and grief’s. In the next fragment of the poem she seems out of tone like if she had stopped living and devoted herself to nothingness. She starts asking questions that have nothing to do with what is happening and asking for people to think and reason. I don’t quite get the meaning of these stanzas in the poem or what the author meant with them:

"'My nerves are bad to-night. Yes, bad. Stay with me.
'Speak to me. Why do you never speak? Speak.
'What are you thinking of? What thinking? What?
'I never know what you are thinking. Think.'" (lines 111-114)

Line 126 ends up with the most shocking of all questions the one that made me feel more grief and sadness it says: "'Are you alive, or not? Is there nothing in your head?'" (line 126)
Once I read this lines I felt as if the character had lost the will to live, the sense of his life and his reason to be. Is the main character confused? Has she lost her mind?

In the end of the second section, there is a lot of repetition in the conversation between the two women, why is "Hurry up its time" repeated so many times?? She says goodnight to all her children then leaves.