A Court of please let this be the book storyline

Cassian PoV

2 months later

Nesta had been attending daily lessons for 2 months when it happened.
We had been sparring when she pinned me against a wall and pulled a blade out on me, actually catching me by surprise.
She hadn't been trying in the lessons, doing everything half heartedly, but she tried that afternoon and made me bleed.

        That day

"Archeron, get your lazy ass off the ground and put some effort into it" I yell at her, yanking her back up and getting into fighting position. I took a deep breath and looked at her, smirking at the rage brewing within her eyes. I opened my mouth to make a remark about it but I was blown backwards, Nesta having punched me in the mouth before I could. I got up to get back in position but she was already behind me, punching the center of spine and causing me to fly forward. I spun to catch her next blow but she was already there, pinning me to the wall with a knife to my throat. I stared at her, eyes wide. "Where has this energy been, Ness?" I asked calmly.

"MY NAME IS NOT NESS, IT'S NESTA, BUT THAT DOESN'T MATTER BECAUSE TO YOU IT'S ARCHERON!!" She screamed, a greenish-black aura radiating from her body. 

"Archeron, if you are not going to report to your commander where this energy has appeared from, you are going to release him and fall back in rank with your sisters." I reply calmly, refusing to argue with her. She moved immediately, rolling her eyes as she moved back. 

"Break, you have five minutes to hydrate and take care of your business. After those five minutes, we train for one more hour and then you can move on to your next duties." I yell out to the other females. All of the females go to get water except Nesta, who decides to go sit in the training rink. I go to the rink, my lower parts thinking instead of my head. "Nesta, are you okay?" I ask, sitting next to her if only to relish in the scent she has adapted.

"I'm fine, now leave me alone before I deck you in the face again." She grumbles, shooting me a look that would scare any sane male. "So you just suddenly had an interest in training or you've been interested and storing that information since you got here?" I ask, not moving an inch. She quickly pushes me over and climbs on top off me, the blade pressing into my side, her face inches from mine and growling. "I said I'm fine, now leave me alone!!" She snarls out before getting off and stalking into the darkness of the camp, leaving training and sight of everyone for the rest of the day. 

                      Back to present day

It's been a week since that evening and since then she has yet to show that kind of energy outside of anything but training, but at least she is showing that attitude in the rink.

I replay that evening as I walk into our cabin, prowling to my room and removing pieces of my armor as I walk. I open my door, only wearing Illryian leather pants as I notice her on my couch. I look at her, my expression not changing. "Yes, Nesta?" I ask, my attention solely on her. 

"Is there any way I could get a hold of some books? They can be on fighting techniques for all I care, I just need something to read at night." She grumbles, clearly trying to keep her usual grimace off her face.

"Don't hurt yourself trying to not frown." I mutter, crossing the room and opening one of my chests, pulling out two books on Illryian history. I walk over to her and gently place them on her lap. "You can keep those if you want. When you're done, I  have more on different things." She nods and stands up, crossing the room without saying a word. She stands by the door for a few seconds, almost as if she was hesitating. "Thank you." I hear her mumble before she walks out, closing the door behind her.