"It took more than that to get along with Obi-wan." Anakin glances briefly to one side. It's hardly any secret--especially if, as he suspects, the boy knows the history--that there was more than a little bad blood between him and Obi-wan for many, many years.

"Besides, he really needed someone who knew how to fly."

Anakin is a snob about flying. Ahsoka and Obi-wan never met his standards. (No one met his standards. Except maybe Luke.)