Act 3, scene 5 of Shakespeare's Romeo and Juliet shows the two lovers waking up early on the morning that Romeo must head to Mantua or be killed. It is also when Juliet's mother and father inform her that she will marry Paris on Thursday, which is just a couple of days away. In order to find oxymorons in this scene, one must not look for words used exactly next to each other such as Romeo applies earlier in Act 1, scene 1, "O brawling love, O loving hate" (I.i.169). It's much more difficult to find oxymorons in this scene because they may be buried in extended metaphors and brief analogies. One example of an oxymoron in a metaphor is shown in the following passage:
Juliet: O, now be gone! More light and light it grows.
Romeo: More light and light, more dark and dark our woes (III.v.35-36).
Thus, Juliet starts one part of the extended oxymoron and Romeo finishes it. Romeo expresses their feelings well because with the morning's light, he needs to get out of town and dark feelings of loneliness and missing each other will begin.
Another oxymoron that Juliet uses is about her mother coming to see her. The day is so young, it still seems as if it could be nighttime. Juliet says, "Is she not down so late, or up so early?" (III.v.66). Here the use of down and up create an oxymoron as well as the words late and early. The words that create the oxymoron are not immediately juxtaposed, but close enough for the audience to catch the image that it is intended to create.
Finally, there are oxymorons scattered throughout the argument that Capulet has with Juliet over marrying Paris. Capulet says Juliet is unworthy for the worthy Paris (III.v.144-145). Then when he asks why Juliet is not grateful to him, she says, ". . . thankful even for hate that is meant love" (III.v.148). This confuses her father as Juliet uses hate and love in one sentence. Opposites are flying all over the place! Capulet barks back, "Thank me no thankings, nor proud me no prouds" (III.v.152). It would be quite comical just for the way the language is used if it weren't centered around such a sad and terrible subject.