It's kind to give advice to a friend.
Zachary's friend is having relationship troubles and is asking him for advice.
Zachary wants whats best for his friend.
Zachary tells his friend that communication is the most important thing and encourages him to communicate with his partner.
Zachary is afraid to give his bad advice so tells his friend he doesn't know what he should do.
Zachary's friend follows his advice and is able to save the relationship.
Zachary's friend feels like he doesn't care and stops hanging out with him.