Question

At First who was Juliet upset with when recieving the new from the nurse that Tybalt was killed?

Later who was Juliet upset with ?

Answer 1

Have you read the play? If so, did you understand it?

Here is a website where you can read the play, choosing the acts and scenes you need to go over:
http://nfs.sparknotes.com/romeojuliet
In the left column (when you get into the acts and scenes), you'll find original Shakespearean English; in the right column, you'll find modern-day English.

Answer 2

My answers to the questions were she was mad at Romeo at first but then she became mad at herself for doubting her husband.

Answer 3

Correct.

She realizes she owes more allegiance to her new husband than to her kinsman, Tybalt.