Dear Angelina,
I am writing to you to express my thanks to you. You know recently I had my book published, don't you?
So my book has been out for a while now. It is not a best-seller or anything, but it has been getting some good reviews from the critics. And I really couldn't have finished it without your moral support. Actually, that is not true at all. I would have finished it o other way. But I am grateful that you believed in me. I am not saying that I want to cut all ties with you.
Writing connects people. I am glad to have a friend like you to encourage me on my writing.
I am looking forward to your reply!
Love from,
Asuka