Originally posted by John Lambert:
They've always been on the same page; they just didn't know they were reading the same book.
Well, OK, I can't argue she seems to have largely suspected Luthor since November, but she never gave Clark a hint of that. Her use of him as a source confused everyone else. Lois developed suspicions that Luthor wasn't everything he claimed to be since the whole summer in November fiasco. That's when she started her investigation of him. She didn't want to talk about it with Clark because then he'd be able to crow about how wrong she had been (not that he'd ever would). She wanted to be able to be the one to prove Lex was the bad guy, and after she felt weak and vulnerable after falling head over heels with Clark, she wanted to do it on her own to prove to herself that she still could.
Not having the eidetic memory that Clark does, Lois has a tendency to change how she thought she felt about what happened in the past. Looking back, with fresh eyes, she sees her actions and motivations differently, than Clark who can pretty much remember everything the way it happened, if he wanted to.
Lois saying that she always wanted to work with him on this with her is true, from a certain POV.
She both wanted him to assist her, to tell her that she was right, and to be there backing her up... in THAT way, she wanted him there, but she wanted to do it all on her own (i.e. in her own way)... because she's Lois.
