OH my, I am sorry you are dealing with all of this. Sorry you are not being treated in the way the you like to be either. If your boss does not accept your attention politely, maybe stop giving him attention and maybe reevaluate why you look up to him. But definitely, I agree that you should show up, do your job, greet people, be nice and go home. Best not to get overly involved in personal lives with people from work other than work related events and happenings. Be yourself, that is advice my dad gives me. Don't worry about other peoples drama. Chances are there is something in your boss's life that makes him the way he is. Maybe it is a phase and it will pass. I'm sorry your work-life drama is keeping you down. I myself, am not a fan of "unnecessary or excessive drama" drama.