...She didn't have any friends, after she became Elesse's padawan. No one to turn to, no one to rely on, no one to care about except Elesse - she didn't see any of her friends from before ever again, and none of the other children liked her, and they were always on the move, and the Jedi discouraged attachments -
And Anakin was so, so tired of having hostages against her. And some things - many things were too raw, too vulnerable, to talk to Elesse about. Not without processing them first, but... She didn't know how to do that from inside her own head.
(She made a friend, after her knighting - she's not entirely sure how, actually. Senator Breha Organa is... Quiet, and Anakin wasn't nonverbal yet but was still... Incredibly socially awkward with no idea how making friends works. And she did speak to Breha some, but... For some reason, she felt pressed to keep the friendship secret. Hidden from everyone. And there's - some of the still existing hurts, a bit too raw to poke directly, tied up with exactly how much she trusts and will confide in her friend.) (That thought is a faint tangent, but Elesse can pick up on it.)