For a while, his concern made me feel guilty for suspecting him. But I couldn’t ignore what my own body was telling me, so I began quietly testing my theory.

On evenings when I told him I was too full for tea, I slept normally. Whenever I drank it, I woke disoriented and exhausted, and one night when I pretended to have a headache and went to bed early without drinking anything, Dererick spent more than an hour downstairs before finally coming to bed looking strangely agitated.