I found it very difficult too, Sho. Believe it or not I'm actually a "pleaser"/"Mr. Nice Guy" co-dependent at heart.
When my wife and I were going thru our sitch, I tried to schedule my days and my week so that I'd see her as little as possible, going to the gym after dinner, taking our boys for outings during the weekends, etc. Although she never admitted it, she pretty much did the same so between her own avoidance activities and her time with her OM we actually saw very little of each other, especially during the week.
Then when we did have to be in the same house, I tried to occupy myself with yard work or things to do in other parts of the house, to limit my interactions with her.
You'll never be able to cut it out completely, especially with the kids, but you can limit about 75% of it I found.
