@Anastasia,, you done your part its now up to the other half to get in touch,, however in some cases a sudden death ect would and could cause a pen-pal to stop communicationg, its the fear of writing down emotions and fears, maybe you should in a while try to pick up where you left off, and your pen-pal may give the reason for the lack of contact, I strongly believe that a friend is a friend, and if a depression or death has caused your pen-pal to decline your e-mails, then maybe all is required is a little time,, well thats my thoughts on the matter, maybe a little note would be suffice just to let them know that your still there!!