It takes 17 for two people to rank together, and 34 for matching and fighting together. The glory of the king intimacy bonus rule is collocation/chaos/other multiplayer activity map+3; Ranked+6 together; Give away gold coins +2. So if you want to get close quickly, you have to play games together.
Related information:
In the glory of the king, players can establish lovers' relationships, but if they want to show loving lovers' relationships, they need more than 600 degrees of intimacy. If the player's intimacy is less than 600, it will not be displayed. You need to play 100 round of qualifying or pairing together to have intimate relationship. There are many ways to improve intimacy, such as giving gifts and props.