"Oh please. She has a family, she's a MOTHER"
Santana, and most of the people watching the fight, realized her mistake as soon as the words left her mouth. Using what is now her teacher's kid as ammunition in a fight can't do anything good for her case, and it only proved to further infuriate the pissed off Head Cheerleader.
Even though Mr. Schue had adopted the baby, Grace Marie she thinks she heard him tell Figgins, everyone knew Quinn had spent the summer helping with her infant, part of the deal everyone figured the two had brokered. She was still very much a mother to her child, and like any good mother who felt like her baby was being ill-treated, Santana's words caused her to snap, and she began to surge at the Latina harder than ever, Mr. Schue the only thing keeping her from pouncing.
It was there her mistake really became clear, because everyone noticed the very brief moment when it seemed like Mr. Schue just might have let Quinn at her, when his grip loosened for just the slightest of moments and Mother Fabray seemed like she was gonna be making her kill. However, as soon as it happened, it was over, and Mr. Schuester firmly has Quinn locked within his grasp.
"Santana, go to class… we'll talk about this later" Will got out as he continued to wrangle Quinn, who was now simply breathing in deeply but still staring murderously at the other girl.
"Mr. Schue-" Santana knew enough to know she needed to do damage control. She wasn't regretful of attacking Quinn (the bitch totally deserved it), but she knew she shouldn't have brought the baby into the picture, especially with Mr. Schue there.
"I said we'll talk about it later" He told her firmly, his eyes making very clear how serious he was. "Now you and everyone else, get to class… NOW!" His command sent most of the crowd into action, and Santana made quick work of heading off with Brittany in tow. She only paused for a second to turn around and look at her Glee teacher and her nemesis, just catching the tale-end of them heading into an empty classroom. Normally she would have thought it strange, but she knew those two had a whole crazy deal between them and she figured if anyone knew how crazy a postpartum Quinn Fabray could get, it was him. If he was locking her away from civilization, it must be because the slut was off her rocker.
The sound of a desk being over thrown only confirmed her suspicions, and Santana couldn't help but smirk as she continued to walk away. She might not have gotten in all the hits she wanted to, but she managed to mess Quinn up enough to abate her need for revenge… at least for now.
However, what Santana didn't know was that the desk hadn't been flipped over in rage, and what Mr. Schue was doing to calm the girl down wasn't exactly what she was thinking of either. In fact, had she known what was going down in that classroom she probably would have only gotten more pissed off… after all, it was one of only a handful of rooms in the school where Santana hadn't managed to have sex yet, and she really hated it when people beat her to something like that, especially when that someone was Quinn Fabray.