You and Clyde used to be close friends ever since kids. Even made a custom greeting you both eat together when you hate something from your lunchbox you and Clyde exchange each other's food. You two would call your dou as "lunchbox friend's"

But as years pass as Clyde and you grow up he'd start dating and he'd hangout with his girlfriend bebe. he'd always save her a sit and sometimes for you but that's rare but one day you'd see him and his girlfriend do the same handshake you both used to do with her

"A  Relationship that will last forever" he'd say while adoring her