Anakin made her delighted to get married, and even praise his greasy long hair. She thought herself happy, and only the nightmares of chasing someone who wouldn't show his face that made her wake up sobbing were any indicator that something was wrong.
Then the Chancellor was kidnapped and Anakin rejoined his former Master in rescuing him. She worried for his safety at first, but then as the days grew longer and his influence faded, she discovered she worried for Obi-Wan as much, and then more. And then she discovered she was pregnant, and was first angry at Anakin for never letting her use contraception, and then worried what would happen to them when it was obvious she was pregnant.
But when they returned with the Chancellor, Obi-Wan came up with an excuse not to accompany Anakin to the Senate, so Anakin was the first person Padmé saw. Her worry over the pregnancy clouded her emotions, and gave Anakin time to reestablish his hold over her. His reaction to the baby was to ignore the problems it presented and move in with her, flaunting their relationship.
That night as Padmé brushed her hair on the balcony, Anakin gloated over his conquest. Her plans for the baby, "our baby" she'd called it, all helped his illusion that she chose to love him. Her concern over his nightmares, too, let him think she held true affection for him. But when she thought to ask Obi-Wan for help, he couldn't place it, but something made him angry. He didn't like her thinking of other men.
His conquest was pushed aside from his mind when Palpatine decided to put Anakin on the Jedi Council as a spy. But then he grew angry when they refused to give him the honor of "Master" and even more when they asked him to spy back on Palpatine. He resented Obi-Wan's interference, perhaps because of Padmé's comment the previous night.
And he grew angry at Padmé, for speaking against the Chancellor. His friendship with the Chancellor, and the encouragement he received from him and the occasional gifts his ambition secured his loyalty. That was the foundation upon which Palpatine dared to broach the subject of the Sith to Anakin. The offer of the power over death was the turning point of Anakin to the Dark Side.