Maintaining these bonds requires specific "green flags" that ensure the relationship is healthy and sustainable:

Ironically, the most destructive words in a friendship are often the most common: "busy" and "soon" . Constantly saying you are "too busy" or promising to hang out "soon" without a date can slowly erode trust and signaling that the relationship is a low priority.

The person who will tell you the truth, even when it’s uncomfortable.

A peer who understands the unique daily stresses of your career.

A mentor figure or someone you deeply admire.

Someone who knows your history and "where you came from."

Someone you can go months without talking to, yet pick up exactly where you left off.

Strong friendships aren't just built during major life events. As noted by social experts , being there for the "small stuff"—checking in when nothing is wrong—is what ensures someone will be there for the "big stuff".