Certainly sounds like pebbles in the shoes. It must be annoying you a lot.

Kalpu, I have little different observation of your situation though. May be it's not the porn he watches, may be it's your standard. You are 'very conservative' enough that you call yourself so, but you are modern enough (Nepali) that you are living with him and having physical intimacy before marrying him.

I think you should decide yourself whether you be conformist or open ...enough to, like other posters are saying, enjoy a light serving of porn once in a while.

It's up to you. But whatever you do, be happy.
(Piece of advice: Call yourself lucky that you don't have relation problem that others have out there.)