Apparently Lee's decided to stay.

Ananova reported the following this morning:
Lee has decided to stay in the Big Brother house.
He had said he had had enough and was considering walking out.
But he's now told Sophie he's changed his mind.
"I'm not going to leave," Lee said. "I wanted to go. I sat here and thought, I can't take anymore of this, and I knew what it would take would be a chat with Big Brother or some housemates. And I did feel better but...it's hard."
Sophie told him that she would be his shoulder to cry on from now and on that if he needed to talk she would be his "big sister."