Per the definition of trust, if you can’t rely on a friend their trustworthiness factor diminishes. Think closely about it — is your friend in question the type that’s there for you when you need it? If they promise you something, do they follow through on that promise? Dependability is vital in a friendship that has sound trust, according to the Stanford Encyclopedia of Philosophy. You want to be able to depend on people for all sorts of needs, like love and advice, the outlet said. Trust in someone means we ultimately feel the person will pull through for us if we need them, the outlet added, so if we don’t feel like we could depend on them to do so, that notion of trust flies right out the window.