If you make an appointment to see someone and they fail to show up as scheduled, you can do one of two things. First, you can assume that they forgot about the appointment, and that they will call you to make amends and to reschedule. Second, you can assume that they had no intention of meeting you, at least not in person. When your assumption is that they forgot, if that is true, they will quickly remedy the situation as soon as you remind them.
If they had no intention of meeting you, they have deliberately lied. In that case, you have two options, if they are a disciple. Either you ask the Lord God Jesus Of Nazareth to insist that they repent, if they seek to remain in the millennial kingdom of God, or you ask the Lord God Almighty to insist that they instantly recuse themself from the circumstances that necessitated the appointment.
The Lord God Almighty El Shaddai