Caught husband watching porn.

Before we got married I caught my husband watching porn a few times. I got angry (mostly because almost every time I have been in another room asleep and instead of waking me up for sex he'd rather hide and watch porn) he knows that it bothers me yet it keeps happening. Usually not very often but I have now caught him TWICE this week! I know some of you will say there is nothing wrong with it and I need to get over it and blah blah blah but I think it is extremely disrespectful to me for him to do it knowing I don't like and it upsets me. I get very very angry when he hides in the bathroom thinking I won't know. I almost always catch him and I just don't know what to do anymore...