"You gave us the counterfeit fairly last night."(2.4.47)
Romeo, Benvolio, and Mercutio/The Streets of Verona
"Good morrow to you both. What counterfeit did I give you?"(2.4.48-49)
Mercutio and Benvolio encounter Romeo and ask him where he was last night. (Deception)
"The slip, sir, the slip."(2.4.50)
"Pardon, good Mercutio, my business was great..."(2.4.51-52)
Shakespeare shows Romeo's attempt to deceive his friends so they do not find about his encounter with Juliet last night.
Act 2 Scene 5
Now, good sweet nurse... Is thy news good or bad?"(2.5.21,37)
Since Romeo was in love with Juliet, Shakespeare asserted the repercussions of that, leading to Romeo trying to not reveal the truth.
Juliet and Nurse/Juliet's Bedroom
"Have you got to go to shrift today?"(2.5.71)
"I have."(2.5.72)
"Then hie you hence to Friar Lawrence's cell. There stays a husband to make you a wife."(2.5.73-74)
The theme of love exists in this scenario in the form that Romeo would do anything for Juliet. He would lie to protect both himself and her, showing how much he cares.
Nurse tells Juliet to meet Romeo at the Friar's cell.(Deception)
"Hie to high fortune! Honest nurse, farewell."(2.5.83)
Shakespeare indicates how according to Romeo's orders to the nurse, Juliet must lie about going to the friar to meet and marry him.
Juliet's love for Romeo show how much she wants to marry him, but at the same time, she does understand the consequences.
Shakespeare shows that Juliet decides to deceive her family and marry Romeo for their true love for each other.