It may not be immoral to watch porn but you can bet your life that it gives the person ideas and its devastating on the persons married to them. They look at stuff and they prefer to spend time they should be spending with you looking at stuff that if they dared they would want to do to you. It becomes an addiction because they get more pleasure from watching the stuff they see and worse of all they sometimes want to try and get you to do stuff thats not what you want they compare you to porn stars and want to do all what they look at. Its very hurtful when your partner prefers to spend more time with the computer or those made up worlds than with you.