Yazilar olsun insan nasil bunu yapar hic utanmadin mì oysa ben senin icin ne hazirliklar yapiyordum kardesim bilmistim seni ucuzmussun cok ucuz

My try:
(yazýlar olsun) How can man do like that! You´re not ashamed at all, are you, but, what have I done to you? I had known you were cheap, very cheap

I think it wil be so :

Shame on you ,  How can man do like that! You´re not ashamed at all, are you, but, what have I done to you? I had known you were my brother/sister,but i understood you are cheap very cheap. 

Yazýklar olsun, insan bunu nasýl yapar? Hiç utanmadýn mý, oysa ben senin için ne hazýrlýklar yapýyordum, kardeþim bilmiþtim seni. Çok ucuzmuþsun, çok ucuz!

Shame on you ,  how can a man do something like that? Aren´t you ashamed any, whereas I was making many preparations for you.  I had known you as a brother/sister. But you are very cheap, very cheap ( but actually here "ucuz" means "adi", maybe it can be translated as "mean"?)