So sorry that your husband is going this way, it's probably what you suspected when he mentioned Plan B, but that doesn't make it easier when it's a reality. Concentrate on what you need to do for you and kt and wm, if your husband isn't accepting help there's nothing you can really do. It's boggling my mind that if he's feeling like just a wallet, why leaving will make that any different. It's what he's choosing by leaving, being pretty much a wallet paying support etc.
{{{HUGS}}}