Oh, it's more than that, you've had Anakin and Padme actually act human together rather than two robots spouting weirdly off-putting pseudo-romantic lines in a painfully wooden fashion. They tease each other, they mess around, they act formal, but not stiff whenever other people are around. It's honestly interesting to watch, or in this case, read about. They feel like people, and Anakin feels like he's genuinely working through his demons, and in a weird way, it seems that Ciaran has become the person he trusts the most to come to with his problems.
He knows the Jedi wouldn't understand, and he desperately wants Padme to think of him as this pillar of strength that she can lean on, she's obviously under a lot of pressure and he's genuinely afraid of adding to that burden. Ciaran isn't a Jedi, has never been anything but friendly, won't judge him, will genuinely give him good advice, and what's more, he feels like she's less of a threat to him. Not just because he's stronger than her, but also because he knows her biggest secret, a secret that would set the whole galaxy against her if it were to get out.
Anakin isn't stupid, he knows Ciaran is into some shady stuff, but he also knows that she's a force for good as well. And, in a strange way, that gives him hope for himself as well. Ciaran has taken his somewhat naive preconceived notions of good and evil, right and wrong, and shattered them over her knee. She's shown him that there's more to life than some binary choice between two moral extremes, that you can be who you want to be, and do what you want to do, and still accomplish great things. It's funny, but in a way Ciaran has taken over the role that once fell to Palpatine, now that he has outgrown the Jedi Code Ciaran is teaching him not how to use his power, but how to use his power responsibly. It's almost like Ciaran really is his master.