The thing is, his emotions are in flux right now.. He has no tools to process, and no education to even understand what's going on in his head... He's a roller coaster with a time bomb attached to it...
The more you get INTO his HEAD to understand him the more STRESSED and ANXIOUS YOU GET...
The best thing you can do for yourself, your family, AND HIM is to get OUT of his head and focus on enjoying your OWN LIFE... particularly now with him going to a FT... The FT can deal with this objectively and not get sucked into his mental soap opera.. you can't...
Until you can deal with his emotions in an intense state of flux without getting sucked into the drama yourself then you need to steer clear of him...
You have Three teenage kids, this is the exact same principle... When teenagers get dramatic, parents just back up and wait for the storm to settle and THEN they deal with it... HARD... THey don't get sucked into that teenage BS... They KNOW it won't help...
SOme of your kids are probably up and down every other day too aren't they? I bet you don't get fraeked out over that, you are able to DEAL... you have to accept you have a fourth teenager right now and work the same principles to deal with it... Or you wil DROWN...
For some reason people coming here don't or can't think that way about their SPOUSE.. they get sucked right in despite their children educating them to how destructive that is...