Martha was getting worried about Jonathan. As time passed he was becoming more and more distant, not only from her but from Clark and even Luke. Martha had asked Clark if he knew if Jonathan had been going to the cave. Clark said he didn't notice anything when he went there. Martha started to get suspicious now. Whenever she tried to to talk to Jonathan and ask where's he been, he would just ignore her.
One day Martha decided that she would take a look in the cave and see if Jonathan was there. She was hoping she'd see him there because then she knew she wouldn't have to worry he was cheating again. However when she got there...Jonathan was nowhere in sight. But who she did run into there was someone she never thought she would see there.
Martha: Nell?
Yes Nell, Lana's aunt and Jonathan's ex-girlfriend. The two had dated in high school but Jonathan broke up with her before going to college. And when Jonathan married Martha...well lets just say that Nell has always hated Martha.
Nell: Well hello Martha.
Martha: What are you doing here?
Nell: You know...you can get anything out of Jonathan, especially when he's in the moment.
Martha: Nell what are you talking about?
Nell: Oh I know the secret about Clark.
Martha: But how?
Nell: Oh Jonathan told me. You know that husband of yours would say anything when he's you know busy...
Martha: No he wouldn't though. He'd never tell Clark's secret to anyone.
Nell: Well he did. And he told me about this place as well.
Martha: Where is Jonathan now?
Nell: Probably waiting for me. Oh you've been wondering where he's been all those times he's not home. Yea he's visiting my place if you know what I mean.
Martha couldn't take it. She now knew the truth, he was cheating again. But not only that, he was also telling Clark's secret. She quickly ran out of the caves. All she wanted to do was just go home and forget this had happened.