To truly understand link relationships, study these three masterworks:

Case Study 1: Final Fantasy X (Tidus & Yuna)

Case Study 2: Arcane (Vi & Caitlyn)

Case Study 3: Pride and Prejudice (Elizabeth & Darcy)

The most romantic line isn't "I love you." It's a callback to the link.

Example: Early in the story, Character A says, "I don't dance. Ever." Later, during a crisis, Character B whispers, "Just this once." And A takes their hand. No further explanation needed. The link carries the meaning.

The best romantic storylines end with a transformed link. That could mean:

Examples: The Straw Hat Pirates (One Piece), The Bat-Family Here, the romantic storyline is often subtextual or delayed indefinitely. The "link" (crew/family) is so sacred that introducing romance threatens the group dynamic. Trope: "We are more than lovers; we are nakama."