I think way too much.

[erikamichelle614]

If Chloe never investigated Clark, she would never have ducked out out it.

If she never ducked out of it, Lionel wouldn't have tried to kill her.

If Lionel never tried to kill her, Lois wouldn't have come to smallville..

get the picture..? :p

[Orbital2]

They never implied that she did go to Smallville though, she was in Metropolis working at the daily planet in the AU

I still think they could have pulled the cousin card as a reason for her to come to smallville though if she had, its not so unusual to visit family.