This shows that Juliet is willing to give up the power and prestige of her family name to be with Romeo if he also denounces his family name.
“O Romeo, Romeo, wherefore art thou Romeo? Deny thy father and refuse thy name, or, if thou wilt not, be but sworn my love, and I’ll no longer be a Capulet” (2.2.36-39).
This how how infatuated Romeo is with Juliet. He can’t even believe that their meeting actually happened and he believes he was in a dream. This intense love is feared by Juliet who feels it will wear off over time.
“O blessed, blessed night! I am afeard, being in night, all this is but a dream, too flattering sweet to be substantial” (2.2.146-48).
Romeo has fallen so hopelessly in love with Juliet that he has completely forgotten about Rosaline. He tries to justify his love for Juliet by saying that it is true love this time
"I pray thee, chide me note. Her I love now Doth grace for grace and love for love allow. The other did not so.