Disapproval

It would depend on what the behavior is and how badly it affected living with him. If it's just a "man thing" you may have to live with it. If it's affecting your relationship you may have to boot him to the couch till it sinks in. Normally I don't recommend playing games, but you could do something you know annoys him then ask how it feels.

This depends, is it affecting your life maybe in a drastic way? Or is it somthing thats just annoying? Theres things you can look past but you make you decisions and all that Jazz