Let's make a list, broken promises.

You promised to send me off. And now you said that you won't be coming.

It doesn't matter if A doesn't come, nor B, nor C. But it matters that you come.
Why tell me in the first place that you will be there and acted as if you were so sure when you were just going to tell me that it was all lies instead? You could have just told me from the start that you weren't coming. I would have accepted that even though I really wanted you there. Maybe I'm not as important to you as you are to me.

Two of the most important people to me made the same promise. They both lied.