Light, Bright and Short.
This is your first conversation with your EX.
Don’t change your program. Ignore anything that is said which tries to provoke emotion. Don’t hear it, and move away; “I have to go…” and say it happy.
This person CAN NOT HURT YOU.
That is what you need to prove to yourself. This EX CAN NOT hurt you. That nothing the EX does or says can touch your soul.
You need to prove it to yourself.
And you prove it to yourself by having the first breezy conversation.