Pornography addiction is playing with fire. If your marriage means anything to you at all then you are playing with fire every time you think about or view porn. Even if you are single it will transform your personality into something that was not meant for you to be. It is not beneficial for the mental and emotional aspect of who you are to look lustfully at another woman or man, other than the person God has blessed you with.
Do not lust in your heart after her beauty or let her captivate you with her eyes, for the prostitute reduces you to a loaf of bread, and the adulteress preys upon your very life. NIV Proverbs 6:25-26