Sometimes, it takes a specific situation for us to know who our real friends are.
We are aware of who are willing to stand with us and would do so demonstrably, if required. Then, there are certain people who you scratch your head and wonder, why they've forgotten or ignored their pledged commitment or loyalty to you.
Certain people who play no role in your future are moving on, one way or another.
Proverbial wheat is being separated from chaff.