You owe them nothing. You are a god, and gods don’t forgive. They wronged you, let them be overwhelmed by the guilt of doing you wrong, and let them mourn the loss of the best thing they ever had.
They know they fucked up. That’s why they make up justifications for the way they treated you. That’s why they have to convince themselves they don’t miss you. They said they were doing you both a favor by dropping you like you were nothing, but it seems like they only did you one. Good luck to them, trying to outrun the ghost of your memory. While they do that, you’ll be living and loving well.