Anakin Skywalker: I sense some anxiety from you about the Duchess. She couldn’t be in safer hands.

Obi-Wan Kenobi: Yes, I know.

Anakin Skywalker: Then why…

Obi-Wan Kenobi: Never mind. It’s all in the past.

Anakin Skywalker: Oh, so you’re close to her?

Obi-Wan Kenobi: I knew her. A long time ago.

From Star Wars: The Clone Wars – Season 2 Episode 13: ‘Voyage of Temptation’ (2×13)