Some people aren't loyal to you they are loyal to their need of you once their needs change so does their loyalty
"Some people aren't loyal to you. They are loyal to their need of you. Once their needs change, so does their loyalty."
It's not about living in a constant state of paranoid about question the loyalty of the people around you, it's about their consistency and it's about building trust. Because trust me, you'd rather eat crumbs with bums than eat steaks with snakes.
Here's 2 relevant quotes about trust:
"Trust is built with consistency." -Lincoln Chafee
"Trust, but verify." -Ronald Reagan