 By the time of season two 's nineteenth episode , the writers had decided Helen 's fate . Originally , the character was going to die on her wedding night , but the creative team felt they could use her more in the mythology . Gough explains the idea Helen still had Clark 's blood , she knew his secret , and her relationship with Lex was too good to write off . The creative team kept Helen 's true motivations a secret to Vaugier , which the actress enjoyed because it allowed her to play the character as if there were no ulterior motives . 
