What?? They've both raised him together he's close with them both but now that he is a teen he's realizing he doesn't see her as a mother figure and it feels awkward for him so of course it's easier for him to talk and be closer to the butler while he's trying to figure out his feelings plus puberty
No he never saw her as a mother figure. And he more closer to the butler then her. Literally the first chapter shows it. Tita was always up under the butler. Sure tita grew closer to her but in the beginning he was only close to the butler. He had a hard time being close to the fl despite him admiring her when he was young.
This story is really starting to feel like this kid is gonna grow up with mommy issues I understand she's beautiful and everything but she's basically raised you? O.o but I mean heyyyy she ain't your real mom please wait like 29 years if this does turn romantic