Just get over it? No. Your husband has an addiction and needs treatment, just as he would if he had an alcohol or drug addiction. Is he in therapy? If not, it may be time for an ultimatum.

I am not against pornography as long as it isn't to excess, isn't an addiction, and doesn't interfere with a couples sex life. Your husband has clearly crossed this line.

Don't just brush it under the rug. He is gaslighting you....its a pretty scary concept, but essentially it involves making you think that you are the crazy one because of his behavior. Your husband even went so far as to encourage you to medicate yourself! This is COMPLETELY unacceptable! Psychiatric drugs are not to be taken lightly, and your husband is so addicted that he rather have you go on medication and risk bad side effects all because he has an addiction. Don't put up with his behavior. He needs to fix himself.