I dont think that Dutta is hurt by Naku and is not talking to her because of her face reveal. I think the real reason he is mad at her and is trying to keep his distance from her is because he has been so hurt in the past by other females that this is the only thing he knows.
I think he is fine and understood really of why Babi and Naku did what they did with coloring Naku's face and hiding it from everyone. He is scared that if he gives in and lets himself trust the beautiful Naku and fall in love with her just like he had fallen in love with the dark Naku that she would somehow leave him or would want someone else and he would never be able to accept that so he thinks that I will try to push her away from me and my love and heart.
I also feel that Dutta is also scared of loosing her even though he is saying and acting like he wants her gone out of his life. For someone who keeps on saying that he doesn't want to see her face, he sure keeps catching glances at her each and every chance he gets.