Juliet demonstrates many character and personality traits throughout Romeo and Juliet. When we first meet her, Juliet is a docile, dutiful child, but upon meeting Romeo, her life is redefined. She realizes deep love for Romeo in a short time and speaks to him with great naturalness, insight and understanding about love. Juliet also becomes suddenly resourceful and secretive and develops the ability to honestly expresses herself, giving her a quite practical side in contrast to Romeo. She is concerned about Romeo's safety, yet she is practical as demonstrated in the planning of the wedding, instructing Romeo to send her word about where and when the event will take place (II.ii.144-46). Juliet demonstrates herself to be focused on her husband and her love for him and willing to do whatever it takes for the two of them to be together. She is passionate, as is demonstrated in her impatience for her wedding night. Juliet’s most obvious character trait is her selfless dedication to her husband to the point that she chooses death rather than living in a world without Romeo.
Juliet was awfully young at the time of her death. It was at the age of 14 when she fell in love with Romeo.
In Romeo's eyes, she meant everything to him.
Romeo: ... The brightness of her cheek would shame those stars, as daylight doth a lamp; her eyes in heaven would through The airy region stream so bright that birds would sing and think it were not night. See, how she leans her cheek upon her hand! O, that I were a glove upon that hand, that I might touch that cheek! The daughter of Old Capulet, who was the greatest enemy of the Montagues. It happens to be that Romeo, Juliet's lover, was the only son of the house of Montagues
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