Was pondering similar, but not very similar issues myself, Nepenthe. Awkward damn position where two exes write to me daily wanting me back, and I write to one other ex wondering if I should get back with her, and if she'd have me etc etc, while generally feeling like the whole business is simply me being lazy and I should do internet dating or something.
Have decided in reality the entire mess wouldn't bother me for an instant if other areas of life were sound, so have thrown myself into my work, fixing the house, catching up with friends, buying presents for my niece, talking to my cousins and uncles and so on.