I have nothing against the infantile behavior, but what really puts me off it's how mean the tendies baby is towards his mommy.
Perhaps some good old discipline can do the trick, maybe a couple of months of strict rules and spankings will teach some manners to that mean baby. After mommy deems he's behaving appropriately then we can start to think about letting him use the computer again, with time limits of course, and as long as he keeps his good behavior. If he ever goes back to his old ways then it's back to bondage and spankings for a month at least. We could also speed up the process with some hypnotic suggestions, I'm sure we can stablish a solid foundation if we go for something that makes him more submissive and dependent on mommy's approval, and even if he tries to fight it back he will have to give in into it at some point. I think he can be turned into a good little angel within 6 and 12 months with the right equipment and attention, and his mommy would be glad to have her that mean little monster turned into an obedient, happy and loving baby.
Now I want to write a greentext about this. I'm not good at writing stories, but I'm really horny right now, and who knows.