How many messages is too often to send in a day? How many messages a day is not considered as "too often"?
My friend was really busy lately and hasn't been replying to me.
So I finally apologize & he said that he is very busy and said that I don't have to send messages to him too often.
If that is so, then how many messages is not "too often"?...because I don't wanna offend him.