years ago i went out on a couple of dates with a bloke and then he didn't return my call.It was well before the days of mobiles, so i wrote him a letter, saying, like you, that i thought it was so unkind to just not reply to my calls, and if he wasn't interested to have the guts to let me know.
I got a nice letter back saying that he really liked me but just didn't want a relationship at that time, blah blah blah. Did i appreciate his honesty? To be honest, it really p1ssed me off! lol x