That is very painful but, to be expected because we all make mistakes.
It really hurts if the trust was broken on purpose- not by mistake.
As people we make all kinds of promises..... business loans, contracts and agreements, verbal promises, marriage promises, etc.
There is no way for anyone to absolutely promise ANYTHING because we are not in control of all the variables.
On Earth, we’re going to have to go through the “letting go” phase, meaning we have to let go of our dependency (physical, emotional, mental, spiritual, dreams, goals and desires) on people, things, jobs, and animals.
If we try to hold on to them, we end up devastated and spiral into depression and anger.
The ONLY ONE we get to hold on to that NEVER leaves us is God - The Father, Son and Holy Spirit.
Understand that people, jobs, houses, cars, pets, things come and go in our life on Earth. Don’t hold on too tightly - just enjoy while you have them and always be ready to let go.