His feelings do not determine your worth.

Even if everyone in the world points at you and says “inadequate” it’s possible that they’re all wrong.

You’re worth loving.

He missed out and I’m sorry

Neat! Also, I don’t know you but, I’m glad you’re here

This is what I would do too.

The act of writing and sending the letter is communication. Counselors taught me to do this to get closure with people