I don't recall her acting insane since season 3 or 4. To me, she only started to get darker after she found out the pregnancy was a fake.
I have to give Lex props though. The man was dedicated in making things look real. He even had a fake nursery room prepared.
Although it's true that she hasn't been the "innocent girl next door" for quite some time, I wouldn't say she took an excessively dark path until Lex messed with her.
I've recently re watched the scene when Lex talked to her about her "miscarriage". It is so intense that he could do what he did to her, and make it seem as though he was mourning a fictitious child that he created.
He faked her pregnancy.
He showed that he was excited for the baby.
He created a scenario where Lana passed out, allowing her to believe it was her fault, her baby was dead, and that he was deeply hurt about it.
Yah, I can understand why she's pissed.

I was just wondering if anyone else noticed that Lana has been insane for like the past 3-4 seasons and it didnt start because of the what Lex did to her during the pregnancy. I knew as soon as she got clarks powers that she was going to do the bad things she always wanted to do and then play it off afterwards as if the powers corrupted her and she didnt understand what she was doing but in reality shes just been lieing to everyone and really is a bad person, and it looks like Lex and Lionel are the only ones who really see it. I am glad though that everyone in this episode finally got to see a little bit of what she really is, unfortunately its only the tip of the iceberg.
Why is Clark ok with Lionel forcing Lana into marrying Lex in the first place?

Wow 10 minutes into the episode and SuperLana is already in black leather and corrupt.
She already has heat vision, super strength, superspeed, super hearing, x-ray vision :|
Girls mature faster? :/
Lionel had Clark dipped in a Kryptonite solution and violated his private memories in "Memoria" and he didn't resort to going commando on him.
black goo that goes on a human and then you see the goo around their eyes?
wasnt this on the x-files?
I would just like for there to be acknowledgment that Lana went through some really bad stuff done to her, and this craziness isn't just coming out of nowhere.
Oh, I dunno. Some of the things the writers have done to Lana have been pretty creative - damn near unbelievable, actually. I mean seriously - a sixteenth century witch? Where'd THAT come from?Oh, I know exactly where it's coming from. Stupid f@#ing lazy writing. The same stupid f@#ing lazy writing that has prevented the character of Lana from ever evolving into something worthwhile. The same stupid f@#ing lazy writing that led to her being a witch in the 4th season for no good reason. I have no beef against the character. I do have beef with the writers who could never figure out what to do with her.

Oh, I dunno. Some of the things the writers have done to Lana have been pretty creative - damn near unbelievable, actually. I mean seriously - a sixteenth century witch? Where'd THAT come from?
Silly? YES! Lazy writing? Mmmmm... not so much.![]()