Rita or Lila... Hmm, not a great choice. Although I thought that Dexter should have dumped Rita ages ago - too needy. Lila, on the other hand - Don't think that Dexter should trust her and I imagine that she has a number of secrets of her own. However, if Lila found out what Dexter does in his spare time I dont think that she would tell on him whereas Rita (with a family to protect) to run screaming...