…Don't even try to compare SS and NS when it comes to abuse. Sasuke attempted to chidori her and THEN proceeded to hold her by the throat, thus choking her, while he attempted to slit her throat. Sakura has never acted so cruelly and brutal towards Naruto. Her "hitting" him is for comedic purposes as implied by their comedic expression during such scenes. Also, if it was REAL abuse, there would be panels showing Naruto being physically bruised as well as mentally and emotionally scarred. His "bruises" that he receives from her punches are literally nonexistent in the next moments. Do you want to know the girl who REALLY abused Naruto? Try the girl who beat the crap out of Naruto right before the confession arc (I always forget her damn name). She beat him up so badly that he had to get hospitalized as people tended to his wounds and bruises. THAT'S abuse.
I'm assuming you're talking about the confession when referring to how she played with his emotions? That happened once and it was because she was extremely desperate. In that moment, she didn't know what else to do. She thought it was the only way to get him back to the village. It was surely not the best way to go about it, but in her mind, she had no other choice. Also… Kishi DID say that he depicted an honest girl during the confession so… make of that what you will.
Sasuke wasn't in the right state of mind, and even if he was it was pure self defense. Sakura tried to kill Sasuke, if you were Sasuke would you have just stood there and let her stab you? Every action he took was out of self defense when Sakura came at him. SS isn't an abusive relationship. Sasuke now respects Sakura a little more after she rescued him. He said so himself,"It was thanks to you, I made it." Plus, now that he's supposedly one of the good guys now, he has no reason to somehow 'abuse' her.
And about the confession, can you please tell me where Kishi said that? And bringing Naruto back to the village using her confession wasn't her only option. For some reason, she felt that SHE was the one that had to bring him back. Shikamaru and the others were already coming up with another one of his genius strategies, but she declined their assistance and asked everyone to let her do it instead.