mutual
Friendships, like any other relationships, are supposed to be mutual—mutual understanding and mutual effort. There should be a balance to it, just like any other aspect of life. When a friendship is one-sided, it can lead to unhealthy feelings of resentment or exhaustion. Eventually on the long run, you can get tired of always being the one who reaches out or makes an effort.
Healthy friendships are built on reciprocity, respect, and shared experiences. They thrive on the understanding that both people are equally important in the relationship. When this balance is achieved, friendships can be one of the most rewarding parts of life.