Anakin waits patiently while Maul thinks it over. The fact that he answers does show some amount of maturity that he didn't entirely expect.

"I agree with Ezra." He pauses. "But regretting your actions shows that you aren't like him."

He understands that Maul doesn't feel bad about what he did to Anakin Skywalker. But regretting acting like his master is enough to help Anakin let go of his anger.

"You know I don't actually hate you, right?"