Lana in Smallville married Lex too. She thought it was for love, but he didn't trust her to stay in love, so used evil doctors to fake a pregnancy she eventually saw through and left him... Which made absolutely no sense. With all the energy he used to fake that pregnancy he could have just gotten her pregnant. And why does the billionaire bad boy heartthrob have to trick the hick hayseed golddigger into marrying him anyway when she was really into him?
Although Smallville is an unimportant footnote now, which no one cares about or remembers.