I wrote something, please correct me because  I want to learn from my mistakes:

Unutamam ve unutamadým seni- I can´t forget you, and I couldn´t forget you

Senin içinde, hep rüyalarým görebildim- I could see all my dreams inside of you

Neden anlayamazdýn?- why didn´t you understand?

Bir günah ettin- you did a sin

Özelliðin vaktýn aldý- your speciality took your time

Neden aldýrmazsýn?- Why didn´t you care?

En azýndan hatýrýn için- At least for your sake

Bir günah iþledin - You commited a sin.

Literally:

Why didn´t you care? = Neden aldýrmadýn?

Why don´t you care? = Neden aldýrmazsýn?

However, literal translation isn´t always good.

Why don´t you care? = Neden aldýrmýyorsun? may sound more natural in many different contexts with this particular verb (i.e. to care: aldýrmak, umursamak, önem vermek). So it´s often better to use Present Continuous (aldýrmýyorsun) instead of Simple Present (aldýrmazsýn).

For example, the verbs in English are in Simple Present while they are in Present Continuous in the Turkish translation:

I keep telling you not to leave your socks on the floor, and you still do it ever single day! Why don´t you care?

Bunu yapmamaný sana söyleyip duruyorum ama çoraplarýný her Allah´Ã½n günü yerde býrakýyorsun. Neden umursamýyorsun?

Thanks so much for your help both of you.

 Both of you ? Hihi ´they´ were the same person

Hhahaha.. I am very crazy.. I didn´t notice it.. But thanks

Both is okay as "Bir ben vardýr bende, benden içeri"

 Hhaha, I am sorry fuki, I didn´t notice it

 Neden anlayamazdýn is why couldn´t you understand.

Anlamak: to understand

anlamazsýn: you don´t understand  (maz makes it negative)

anlayamazsýn: you cannot understand (-a- adds in the concept of ability)

anlayamazdýn: you were unable to understand / you couldn´t understand

Why didn´t you understand would be neden anlamadýn?

 Thanks for the correction

why would not you understand?=neden anlayamazdýn?