fhorns,
I can see what you mean. But it took some time for it to become an issue, so it will take some time to resolve it as an issue. There's nothing wrong with that.
I would say it's not so much a matter of spending time on the computer as allowing other things to be neglected. The family and personal responsibilities, of course, but also other interests. Perhaps try to develop your other interests so you have fulfilling ways of enjoying yourself other than the computer?
I think it might also help if you suggest that your wife too should ring-fence some time and claim it as hers, for whatever she wants to do. She needs a break too.
And finally, here's something I wonder if you can relate to: I remember one time when I was teaching at the University of London, I arranged a surprise day off for my wife. I had friends lined up to watch our toddler son all day, and we would go window shopping in Oxford Street, then lunch somewhere, then a play in the afternoon, then dinner, then another play, and then home to a huge bubble bath and a bottle of champagne. I really pulled out all the stops, and for no special occasion at all. She loved it and it's still a very special memory for us.
What was funny was that when we came up out of the tube station under Oxford Circus, and were standing there in the liveliest spot in the liveliest part of one of the liveliest cities of the world, we were just looking at each other and thinking, "Now what?" We laughed as we realized that since the birth of our son we had more or less "forgotten" how to relate to each other as adults just having fun together - as adults.
It was very important to get past that, and we both like to remember that wild and wonderful day and what we learned from it.
Much love,
Larry