"Come hither nurse, what is yond gentleman"( 1.5.147)
The nurse and Juliet in her room
His name is Romeo, and a Montague, The only son. of your great enemy" 1.5.150-151)
The nurse tells her that Romeo is a Montague
"My only love sprung from my only hate" 1.5.152
In this scence, Juliet has just meet Romeo at the party. Romeo is there to meet a new woman. He meets her and kisses her. She wants the nurse to tell her who he is.
The nuse tells her that he is a Montaque. The capulets and the Montagues have a feud between them. Juliet did not know that.
This quote relates to hate because she only loves Romeo,who is from the Montaques. The Montagues and capulets has been having a family feud for many years. They both hate hate each other's family but love each other.