You know, sadly the whole scenario of "losing" the paperwork is not so unusual. Some guys just never seem to getting around to filling it out, samething. Maybe they do it to get more time or just because they are procrastinators. Maybe they just want us to do all of the work as we've always done. Could even be that he doesn't want to be looked at in the end as the one who pulled the trigger. Clearly he's a very screwed up man.
You know, from what you write it is evident that you are the rock and probably always have been. That's probably the very thing he needs but is also holding against you. Thing is He can't have it both ways and right now it doesn't sound like he knows what to do.
Stay strong and listen to your gut. You're doing so great!