"A memory wipe? Ooooh, the plot thickens." Missy was obviously enjoying Clara's emotional distress. "I always did say that things between you two would end in tragedy." Of course, she hadn't said that out loud, and she'd tried to cause said tragedy more than once, but that didn't matter.

"So you're frozen in time, and he's forgotten you. Poor Clara, forced to spend an eternity alone, pining for the Doctor." Yeah, that sounded like a typical life for most of the Doctor's friends.