text: have you ever? had someone that at one time where involed with a very long time ago, out of the blue send you a letter just to say hi and to see how you are doing? should you responed to the letter or ignore it? why or why not? yes, and depending on the situation of how you became uninvolved, respond politely.  if it was a good thing and you care, then respond. maybe this person is fishing for information to see if you are single.