Because that's what someone has done to me.
I was friends with X for about 4 years- not long, I know. When we first met she was in a bad place relationship wise etc and we got close quite quickly.
However, just as she picked her life up, I began to have problems in mine and became needy far too needy. I used to call her when I needed advice and I think over the months she got a bit fed up. When I say I called her, I mean maybe once a month or so- not daily!
Anyway, I began to think she was trying to drop me as a friend, and have not seen her for a year. we exchanged Xmas cards but nothing since.
I posted back a book to her I had borrowed adn got no reply.
I emailed her a week ago to say that I hoped the book had arrive, hoped everything was working out for her- and apologised for my neediness. I said I hoped she was okay and if she ever wanted to have a coofee if she was passing, let me know.
Nothing from her. I feel a bit miffed.