Yes he is getting affected by sahiba closeness (seduced), not angry but he looks confused as sahiba has never expressed her feelings. If he would have been angry he would have avoided her closeness. Lets see how it comes in episode, as SBS said last mein mann jaayega, so initially he might be confused and anger will go away. later when sahiba was bit close to him he slowly was giving in and till sahiba expresses her feelings he might accept her but goons will come and interrupt.
That's not a blank face Donaajii
. I don't know if he's looking passionate..he doesn't have to yet. But looks like he is getting seduced and he's angry and confused at the same time. Expressions are there.