C21 A reason

"I heard you on the phone before, Olivia," he admitted. I know you were calling friends, and no one was available to help you."

"Oh... you listened in on my private conversations, did you?" I felt my cheeks grow warm and red, caught in my little white lie.

"I couldn't help it. Besides, I knew you would act as if everything was fine, even if it wasn't."

Well, he had me there