Why do people ship Ekko and Jinx?
Ekko and Jinx were childhood friends in Zaun and were the two youngest among Vi and the others. As children, the two were close. But after Vander's death, the both of them went in very different directions.
Ekko also has multiple voice lines in various games that suggest he had a deeper friendship with Jinx. In League of Legends, his taunt toward an enemy Jinx is, “I had a crush… until you started talking to the gun.” In Legends of Runeterra, he reacts to an allied Jinx being summoned with the line, “man…
Ekko is a little older than Jinx, I think he's like 19-20. After Vander died he went around helping Silco's victims until they had a little rag tag crew of people like him who wanted to help. They found the tree and were able to slowly expand into the Firelights.
League of Legends: The Reason Behind Jinx's Flat Chest, Ekko Used to Have a Crush on Jinx and More Facts You Might Not Know about Her. Jinx, the erratic temperamental criminal from Zaun, lives to wreak havoc without minding the consequences.
Jinx is the girlfriend of Kid Flash. Their relationship was kind of rocky at first but they are off that road and now really care for each other. In the comics they are shown more romantic. They have been seen on dates to the movies, at the carnival, at the pizza place, and in the park.