I'm not sure what the lines are exactly but here are the lines I found that corresponds to the choice: Once you see other beautiful girls at the party, you will see that Rosaline is not so special.
Benvolio. By giving liberty unto thine eyes; Examine other beauties. Benvolio. At this same ancient feast of Capulet's Sups the fair Rosaline whom thou so lovest, With all the admired beauties of Verona: Go thither; and, with unattainted eye, Compare her face with some that I shall show, And I will make thee think thy swan a crow. Benvolio. Tut, you saw her fair, none else being by, Herself poised with herself in either eye: But in that crystal scales let there be weigh'd Your lady's love against some other maid That I will show you shining at this feast, And she shall scant show well that now shows best.
