Greg paused, and knew he should not be so startled to see Theo react as he did; still, it alarmed him.
He reached out a tentative hand to Theo's back, to rub at it, "Come on, Theo. What would be so terrible with it being later? I'm here, with you, and I love you buddy. I just don't want you in here anymore. I want you with me," he said, quietly even as he rubbed at Theo's back, "So I was wrong for saying you are lost. I'm sorry."
He didn't speak again for a few minutes, but just rubbed at Theo's back, hoping he could lend some support to his friend that seemed to fly into fits about facing the present in any way.
"You aren't lost. You are right here, with me, in St. Mungo's," and Greg looked about the bare cell, "In this fucking rat hole that I want you out of. I want you with me at school, in the cottage."