Why does Juliet get mad at Nurse when she says Romeo is the one to blame? Act 3 scene 2

The nurse criticizes Romeo for killing Tybalt:

There’s no trust,
No faith, no honesty in men. All perjured,
All forsworn, all naught, all dissemblers.
Ah, where’s my man?

Juliet gets angry at the nurse for saying this:

Blistered be thy tongue
For such a wish! He was not born to shame.