失礼しました。
失礼しました。
It has been a long time since I wrote you last.
It has been a long time since I got in touch with you last time.
無礼です。
I'm rude.
失礼だ
You're rude.
I apologized.
謝ります。
ご無沙汰してます
It has been a long time since I've seen you.
Excuse me a minute.