“Lara Jean and Peter will not break each other’s hearts.”

“Lara Jean and Peter will not break each other’s hearts” is the written promise Lara Jean Song Covey adds to her relationship contract with Peter Kavinsky. It gives form to her wish that neither of them hurt the other, while the conversation around it recognizes that good intentions cannot guarantee what happens in a relationship.

The Promise Takes Shape

Lara Jean raises the possibility of heartbreak directly, telling Peter Kavinsky, “I don’t want us to ever break each other’s hearts.” He cups her cheek and asks whether she plans to break his heart. She answers that she does not expect either of them to intend such harm: “Nobody ever plans it.” The exchange treats heartbreak not as a threat one person is making, but as a risk that can exist even without deliberate cruelty.

Peter proposes turning that concern into a term of their contract: “Then put that in the contract. Peter and Lara Jean promise not to break each other’s hearts.” Lara Jean writes the promise down as “Lara Jean and Peter will not break each other’s hearts.” The shift from Peter’s proposed wording to the written clause makes the sentiment a shared rule within their agreement.

Meaning and Limits

The sentence is a pledge, not a prediction that heartbreak is impossible. Its force comes from the contrast between the couple’s desire to protect each other and their recognition that nobody plans to cause such pain. Lara Jean beams with relief after writing it, so the act of recording the promise offers immediate reassurance; the wording itself cannot ensure that the future will obey it.

As part of the relationship contract, the line translates emotional vulnerability into an explicit commitment. It marks their hope that affection can be made safer through mutual care, while its absolute wording carries an uncertainty that the conversation has already admitted.