In Romeo and Juliet, is there a simile showing how they long for each other but they can't be together due to their families' feud?
"That which we call a rose
By any other word would smell as sweet.So Romeo would, were he not Romeo called,
Retain that dear perfection" (2.2.43-46)
"I have been feasting with mine enemyWhere on a sudden one hath wounded me,That’s by me wounded. Both our remediesWithin thy help and holy physic lies." (2.3.49-52)
Sorry I couldn't find any similes, but hopefully these metaphors work well enough!
Act 2, scene 2 gives us insight into Juliet's conflict—she loves Romeo but knows the animosity between their families will keep them from being together. In the following lines, she advises Romeo to consider the consequences of their actions.
Well, do not swear: although I joy in thee,
I have no joy of this contract to-night:
It is too rash, too unadvised, too sudden;
Too like the lightning, which doth cease to be
Ere one can say 'It lightens.' Sweet, good night!
Juliet compares their love to lightning, fearing that it will end before it can even be registered. The pressure of the familial conflict causes Juliet to be cautious at first in her feelings for Romeo. If the hatred between the families did not exist, she could be freer in her love. She finds her joy in Romeo but there is no joy to be found in making impulsive decisions because of the potential consequences.
Romeo wandered into the Capulet's party in Act 1, Scene 5 and he walks in uninvited. When he randomly stumbles upon Juliet he comments to Mercutio regarding her beauty:
"O, she doth teach the torches to burn bright!
It seems she hangs upon the cheek of night
As a rich jewel in an Ethiop's ear-
Beauty too rich for use, for earth to dear!" (1.5.42-45)
Here Romeo is using a simile which compares Juliet to a rich jewel hanging in the ear of an Ethiopian (can also be read as very dark skinned individual). Thus, Juliet's beauty stands out againt the night just as a sparkling jewel would stand out in contrast against darker skin. But Romeo's moment to gaze at his new-found love is contrasted with Tybalt declaring to other Capulets that Romeo should not even be at the party be because he is a Montague, which foreshadows the conflict that Romeo and Tybalt have in Act 3.