Christa, I would give it another week or two, if he doesn't make any contact with you then I would send the letter or card. If he does make contact with you, then do not send it. Of course this is just my personal opinion on this, I just feel since he is making contact right now then he would feel it is manipulation if you were to go ahead and send it while the two of you are communicating. On the other hand, if the contact stops over the next week or two, by all means send it and go from there.