>>3) What happened to the geek that was dating Mackeys
wife?
>
>Vic made his wife fire the guy and stop dating him.  They
>never showed him after that.  Since he was a good
therapist
>for his crazy kid, the kid started to regress into his
>previous behavior.

The show is also notorious for dropping storylines,
particularly when the storylines deal with the
detective's/police's private lives.