Mixed love ( Tmnt x reader oneshots) *Request open!*

I love you too~ Donnie x Sick reader

A sad oneshot. I'm feeling a little depressed so here we go, enjoy....You could read now....
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Donnie's P.O.V~

I sat on my lab chair, trying to make retro-mutagen to get April's dad. Who turned into a bat mutant by accident. I sigh in annoyance as this experiment was a total failure again. I banged my fist onto the metal table as the concoction didn't did the deed I was hoping for again. I decided to rest for a minute. To get coffee since I'm a little tired from days of no sleep. I got up from the chair and went to the kitchen to make some coffee. Everyone's asleep by now since it was like 1 a.m. I tried not to make some noise for my brothers and father to wake up. After makingthe coffee and having to take a sip of the hot beverage. I went in the lab with the coffee mug and started to get to work.

Three hours later. I sigh with annoyanc and anger as the retro-mutagen didn't work, AGAIN!! With frustration being the most dominant emotion I felt. I start to tightened my fist and exhaled large amounts of carbon dioxide to the air. I tried to make myself to calm down, but it didn't work. Then suddenly my mind is flashing my memories where I failed. Most particularly when SHE died because of me. The memory gave me a saddened and missing feeling aura in the room. My fist loosened, tears were threatening to fall from my eyes as the hurtful memories starts to become more real and vivid.

I looked at the metal table from across the room where she once laid. I saw myself crying and shaking. There were wires and medical machines surrounded her laying and frail form. She looked dead and lifeless. I was devastated when she was dead. If I had known she had this deadly illness from the start. I would have given the cure already. If I wouldn't be this clueless about it and not ignored her then she wouldn't have died. I love her but I haven't gotten the chance to say it before she closed her eyes forever. Tears fell down more as I continued to blame myself for her death.

~Flashback~

Me and Y/n were in my lab. She was sitting on a chair and reading her favourite book. While I am trying to fix the toaster since Raph broke it again. " This is the third time this week this had happened." I mumbled but Y/n still heard it. " Hmm?" She hummed. " I meant Raph breaking stuff. Does he not care of how much time it takes to fix their stuff and since I'm the genius I need to fix them all?!" I said in annoyance. " Of course the care." Y/n said, trying to comfort me. " Well I don't think so." I replied coldly. " How about me?" She asked. " I suppose." I said then sighed. I turned around to face her but the sight I saw was not expecting. She was on the floor and throwing up blood. I immediately freaked out and rushed her to the bed and gave her a bowl to puke on. I grabbed the wires and the medical machines and medicines. I found out she had Leukemia, its a illness of the blood and its very much fatal. I tried to calm down and do my thing. Days later I thought she was getting better but not. She spoke her last words to me. " I love you...Donnie.." She said in a weak voice. She then closed her eyes before I can respond. She was gone.... I wailed in sadness and I never became the same again.

~ End of flashback~

I continued to cry in pain and sadness. Regret and grief filled my empty heart. The only words I could say from the sounds of my sobs were. " I love you too, Y/n."

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I got inspired by a movie I watched a week ago. The girl loves the boy but the boy have Leukemia. The boy didn't die and it had a happy ending. I hope you like it and today's my mom's birthday!! So happy birthday mom!! That's all bye!