Em fooled everyone when she stayed with Lisa. When she cheated on Sid those times when he was away, everybody was glued to the screen waiting for her to do it again and everybody ignored the fact that she slept all the time because we were waiting for her to fuck Logan. But then Sid found out and vowed never to do it again. And even now in this new apartment she does the same thing she did when she was with Lisa but without the excitement of waiting for her to fuck another guy, and while being in a boring relationship with Sid. I'm not sure whose "fault" it is but the bottom line is neither of them are interesting right now.