I will try to help as I can. Perhaps that can help. No, you are not, and many here feel as you do. However, your husband is not the only one who may think it is a better method for sexual release than some alternatives, such as having an affair. You have differing opinions on the subject, but that doesn't necessarily make either of you wrong.
Many couples find viewing erotic material together to be a stimulating exercise.
Many sex therapists advise that couples having sexual problems view erotic materials as a tool. I would be willing to have sex with him more often if he gave up the internet porn. That is a sign of severe trouble in your marriage. I would guess that pornography is not the root of it, it is just a symptom, a method he has found to meet his needs in the absence of a fulfillinfg sex life with you. You need to examine why that sexual problem exists.