I need a quote from Romeo and Juliet about Romeo loving Juliet, preferably one that hints at how his desire or love for her clouds his judgement.

Romeo and Juliet has many quotes that show Romeo's feelings of love for Juliet. You can read and see .

At the beginning of Act II, the Chorus tells the audience about Romeo and Juliet's love for each other, and foreshadows the problems they will face: "Now Romeo is belov'd, and loves again, / Alike bewitched by the charm of looks" (line 5-6). This quote means that Romeo is loved by Juliet and he loves her too (in contrast to his unrequited love for Rosaline) and that both are charmed by the other's good looks. The word "bewitched" in this quote hints at evil and danger.

At the beginning of the balcony scene, in Act II, scene II, Romeo sneaks into the Capulet family's courtyard and sees Juliet come out on her balcony. Romeo says,

But soft! What light through yonder window breaks?

It is the East, and Juliet is the sun!

Arise, fair sun, and kill the envious moon,

Romeo compares Juliet to the sun rising in the east. The sun is obviously the brightest of the heavenly bodies as seen from Earth, and this shows that Romeo considers Juliet to be the most beautiful of all the girls on Earth. The sun and moon, day and night, and light and darkness are recurring motifs in this play. Romeo comparing Juliet to the morning sun actually hints at the couple's upcoming problems, because in Act III, scene II, Juliet compares Romeo to the night:

Give me my Romeo; and, when he shall die,

Take him and cut him out in little stars,

And he will make the face of heaven so fine

That all the world will be in love with night

And pay no worship to the garish sun.

This means that in Juliet's eyes, Romeo is as handsome as the night sky filled with stars. While Romeo loves Juliet because she is like the light of day, Juliet loves Romeo because he is like the starlit night. The day and the night are opposites; they cannot be together, and nor can Romeo and Juliet.