what is the key to a everlasting friendships?

Honesty, loyalty, communication, and know how to be real with him/her.

Loyalty, honor, brotherly love and time

your friends change over time because everyone grows & their priorities change. 

it's your bond and love for each other that will be everlasting. 

Have open communication. “A million factors go into a lifelong friendship and no two friendships …
Don’t judge each other. “Women want to share a friendship with other girlfriends in a ‘judgement …
Be a good listener. “I think the number one thing that makes friendships last is listening,” Carolyn …
Be consistent. “I think consistent effort is the number one thing that makes a friendship last a …