4 months post op and still can't smile (upper lip hangs low and covers teeth) - Major Septorhinoplasty

I had major septal reconstruction and rhinoplasty to remove the hump on my nose 4 months ago. My surgeon said I was VERY deviated and that my septum was completely to one side and a 5/200 case. My nose is as hard as a rock now. My smile has not shown much improvement in the last two months. He says this is due to stiffness and NOT because of nerve/muscle cutting and that this will clear in 1 yr. Is what he is saying true? I'm very depressed because I loved my smile.