I am sorry that I make communication between you broken off.
Dear Miss 武田,
I realized what you meant finally.
I'm sorry for my rudeness.
This is a final message to you.
Whatever talks I said before would be vanished into thin air.
The thing that I ask you a favor never come about.
Communication between you and me is over.
I know e-mail communication is impolite, but international communication often need it.
So......
Despite I write e-mails earnestly and sincerely every time, you still don't feel my sincere desire.
Because my phraseology makes me unhappy, I owe you an apology.
Please you pardon me for incivility.
Computers are products of high technology indeed.
So it appears sorrowful in the emotionless world.
Really, I hardly know how to express my gratitude.
Thank you for the help in the past.
Thank you for your remonstrance.
I strive to learn proprieties from now on.