Watching Porn With Your Other Half?

So today my fianc�e says that when it comes to porn I act like a prude from the 1950's. To give a little more detail, he has made it very clear to me from the 1st day we met that he likes porn. Over time Ive found that his liking porn is more like an addiction. I don't care if he watches it. I have nothing against porn. I've watched porn before. But I prefer not to watch it with him because the fact that he likes it so much makes me feel uncomfortable. Lately he makes little comments about wanting to watch it together while we're having sex. I told him it doesn't appeal to me because of my uncomfort of his porn addiction and im afraid it will open a can of worms that may cause dependency during to be intimate. I need sone opinions here...especially some honest opinions from men. Am I being a prude? Do you think bringing porn into our bedroom could ruin out relationship?