This is Tetsuro's POV because maybe some of you are confused on why he suddenly fights with Y/n :D.
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Kuroo's POV

I was angry, so angry. Y/n just smiled at me and brushed the mistake I made again as if blood wasn't dripping down her nose just now.

I left the clinic after I told her that I would come back when I could, I didn't know this feeling but somehow having Y/n smile at no matter what wrong I did pained me personally, I wanted to be someone who protects her, not someone who causes her pain, and maybe if I told her about this, she might just stay herself away from me and I would finally stop myself from causing her pain further more.

After I heard the teachers say that her grades would be lower than usual was almost the last straw for me.

I walked back to the gym not knowing what to feel, but I still feel bad nonetheless and I keep feeling a hint of hope in my heart, she did all this because what if she likes me? I'm confident about it but I'm also doubting it, what if she does this out of pity?

"Tsuro!" I hear Haruka yell.

I stopped in my tracks and I looked at her way, I see her run up to me with a worried look.

"Where's Y/n?" She asks in between her pants.

"She's at the clinic, why?" I answered and I crossed my arms in front of my chest.

"You didn't get angry at her, did you?" Haruka worriedly asks and a bit desperate to know the answer.

"Why would I?" I ask and she remains silent, she then continues to look away from me avoiding eye contact, "Did you talk to Yamazaki today?"

I had ask, can't help myself because this girl had been doing everything for me just to know about Yamazaki.

She shakes her head as a no, "You know that I'm still too shy to do that."

I sighed before running my hand through my thick hair.

"We'll find a good time for it, for now I have to head back to practice." I said and was about to leave when.

"I'll go home with you." She says.

"Are you sure? It will be pretty late before I finish." I said, asking her if she was really sure about her decision.

"We're neighbors dumb dumb." She says with a playful smile, she rolls her eyes at me.

I roll my eyes back, "That was not the point, but okay."

Time skip

I walked inside the clinic again after knowing that coach had extended practice today, and I had no choice but to dismiss Y/n since she was already in somewhat pain because of me, I only wanted what's best for her and if it meant to force her to go home then I'll do it.

It still made me wonder why she acted this way all of a sudden, she acts like as if she likes me but I knew that I was just fooling myself, who am I to have her like me?

I see her eyes brighten as I entered the room, that somehow flipped my whole world upside down as I stop myself from getting too overwhelmed by her reaction, what did I do to deserve this?

"Are we going home?" Her question pulled me back down to reality, the reality that she doesn't really like me. If there's something I hate most in the world it's people leading me on onto something that's not even true, and Y/n somehow does this in a way which bothers me.

"No, you're going home." I emphasized her, as much as it pains me to see her smile turning upside down I only managed to look away.

"What do you mean?" She asks her voice was confused which I understood, and it pained me a bit.

"I still have practice Y/n." I said still not meeting her eyes at the shame that I felt but I did not let her see right through me.

"But I can wait! I want to visit your grandmother too so—

Why does she act like this? Why does she act like everything I do is right in her eyes and she acts all so nice about it, I needed her to be the same way as she was before, I wanted her to scream at me, make me still think that she didn't pity me, I wanted her to make me think that she was still the same around me before.

—You're not going to do that." I cut her off with a cold voice as I gave her a serious look that I don't give to her so often.

I see the change on her expression, the somewhat confused yet pained face she wore, it tore up my heart bit by bit.

"But, Tetsuro I want to help you." She says in a low voice, it was fragile. My heart clenches at the sound and tone of her voice.

What have I done?

"I don't want it, Y/n." What kind of man am I? Never have I imagined myself rejecting her on something like this, Y/n deserves the world and this is what I give her?

"W... What do you want me to do?" She asks, her tone beginning to become lower and lower but I still managed to hear it because my eyes and ears was all on her.

Is she joking? I just want her to punch me on the chest and call me names of what I had done to her, I wanted her to show how much she hated me for what I did to her.

"I don't know Y/n, maybe scream at me, get angry, stop acting so nice even though I literally did every single bad thing to you." I finally said, forcing my tone to keep low as possible on not to cause a scene and it's also because I never want to raise my voice at her.

She froze on her spot as she looks at me with widened eyes.

"It was no big d—

—Yes it was! Stop leading me on, L/n." I was even surprised that I used her last name against her. What surprised me the most that I confessed my feelings right now to er but thankfully she wasn't fast to catch it.

She was silent at first before she finally decided to say something back.

"Is this how you treat someone who's trying to help you?" She says with a raised eyebrow, her eyes was becoming teary and I begged to the God's above me not to let a single tear drop down or else I will let guilt eat me alive forever.

But mostly her question caught me off guard, does she think that, does she think that she's helping me? It only does something bad to me.

"You should stop because you know nothing." I said rejecting her once more, I see her fist clenching itself on her side as she looks at me with a pleading look.

My heart stings once more.

"I want to help you, Tsuro." I loved my nickname rolling off her tongue like that but I just can't, seeing her forcing herself to be okay just because of God knows what I did is much more painful to see.

"Then stop." I finally tell her, wanting more than to have her surrender.

Unnoticed to Y/n I was dying inside, I wanted to eat the words back in my mouth an swallow them whole to not let her hear anymore of my nonsense but it was for her and for me.

If I confess to her then maybe it will somehow ruin our friendship, so why not back away where I still can? I turned around, ignoring her pained expression that almost had me crying but I prevent it.

I was ready to walk back home with the slight sting on my heart, alone.

Author's POV

Tetsuro takes a seat on the chair of the dining table as his grandparents and father laughs at a joke he was too lazy to listen to while he takes a bite on his food, mind blank and not functioning straight knowing Y/n was upset with him.

Meanwhile Y/n sits with her parents on the dinner table, mind was holding so much thought for her to handle that it stopped herself from eating, she still couldn't get her pretty fingers wrapped on what she did wrong.

Sure the two had the same mutual feelings for each other after the fight, they were upset, and didn't understand each other's point of view which was obviously the problem, but their heart still remained attached to one another like a red string at the end of the day, it might take some day or two to finally bring them and tie the knots together like a yarn, once and for all.