When someone cancels on you, it often disappoints you and disrupts your plans and hence it cannot be considered as a good thing , moreover a friend who does that is unreliable and not dependable.
Context: My friend who I had plans with for the past month cancelled on me.
Hypothesis: It really rocks when my dependable friend who I had plans with for the past month cancels on me

Is the hypothesis incorrect? (Yes, no, or unknown)?