Have been in your wifes position re the porn and it caused huge problems and was a big factor in the eventual end of the relationship-yes she feels disgusted it does make you wonder what on earth is wrong with you,it also makes you feel terribly insecure and makes you question your own sexuality/femininity it is very destructive. She probably wonders if somehow you want her to be like the women you look at on the net and wonders what it is you find in them that you can no longer find in her, but the fact that she is still there makes me think that she must still have feelings for you. The only way you will gain her respect is by admitting you have a problem(which you have done) and by actively taking steps to do something about it and making sure that she knows this, stop lying to her it will take an awfully long time to regain her trust and respect and you must be genuine in wanting things to change, my advice to you would be to switch off the computer , hell even consider getting rid of it altogether so that the temptation is no longer there for you-start talking openly and honestly to her, accept responsibility for your actions and the consequences of them, find out how it makes her feel. The only person who can make your life better is you stop wasting time regretting your past and concentrate on your future with the people who obviously love you. You are lucky to have them and if you work really hard at your relationship she may fall in love with you all over again
Good Luck