I know how it feels when you go out of your way to teach someone something, hopeful that they would make good use of the knowledge but they turn around and rubbish your effort. It hurts to the marrows so I can relate.
We are so alike. I do not find it difficult to say sorry but I only say it when I know I sincerely mean it. I don't just say it for peace to reign.
RE: The pattern that my apology follows...