Porn problems

Lady's I need opinions.. I've been married for almost one year and I've known for quite a while that my husband watches porn but up until a few weeks ago I've noticed that our sexual activity has been decreasing. We have sex maybe once a week and that's only if I iniciate things. Idk what to do. Him not trying to be with me make me upset, sad, angry all sorts of different feelings and I just don't know if I should just let it be and not say anything or talk to him about it. I've actually refrained myself of talking to him about it because it just makes me feel real awkward to reds the whole situation. So should I let him know or just keep quiet like I've been doing for the past few weeks.