I HATE Lilah. Hate hate hate her. One reason is that she isn't a character in her own right. She's just there to be 'love interest'. Whereas Rita IS a character in her own right, even if she's also a love interest. But it was typical TV drama crap where Dexter and Rita 'break up' and then Dexter does something and then Rita is mad about it. But yeah, I also found the whole drug analogy ridiculous. If that season had solely been about the Bay Harbor Butcher investigation, it would have been great. But anyway, if you like Deb, Deb really grows character wise and career wise from the uncertain cop who's on vice duty. S5 was like my season, because it gave me something I had always wanted, and I loved the dynamic between Dexter and Julia Stiles' character. But yes, whatever you do, DO NOT watch past S5, lol. It will only kill your brain cells.