Help translate a Chinese sentence into Japanese.

You did the right thing. If you are unhappy in dealing with the Japanese, don't make excuses and excuses, and don't say objective reasons. That would be considered insincere, that is, just apologize directly.

I'm really sorry. Everything is casual and too casual, which makes you embarrassed. Anyway, I will always regard you as my best friend and cherish this friendship forever.

すべてのかってとふちゅぅででっ

Remember to remove the pseudonyms in brackets when pasting each other.