Same here! I feel a little bit like, what did I do? Wasn't I interesting enough? I don't really defriend all that often myself. I even have people on my flist who talk about nothing but bandslash, which I'm not interested in at all, but I keep them on because I'm sentimental about when we were both into pop. Who knows. Friending is a mysterious thing indeed. There's a whole complicated set of etiquette that I have no idea about.