I would choose option 4, wfm. I've done it before and I'd do it again. Put my head down, "get the job done" and see what comes later.
It svcks to not know if it is all worth it and that things aren't quite the way they'd be if one had that option to do it themselves.
I do believe that any results worth it are worth doing the work, even if the results are not quite what we think they'll be.
I am not giving you legal advice as I am not a L and this is not the place for that, you should (as we've said many time before) seek or at least research that for yourself. That said, there are two side to that as well. In Canada you may or may not have claim on the business, dependent on certain things and those things are grey. On the personal side, you possibly have claim as common law to the business, regardless of your business ownership or partnership or if it's incorporated under his name only, you would possibly have claim on his share.
DO NOT take what I said above in any way factually. Do find out for sure. Two different acts of law. Much information is available online, even if just to refer and even if you hope to never go that road.
I think you are on your way to doing what you need to, to weather this storm. Keep doing what you are doing and keep reminding yourself that... RIGHT NOW... every conversation you have with your H is likely BUSINESS ONLY.
To touch on the earlier comment of when the personal might come. That will be entirely up to your H. IF he contacts you and it is personal, you will know, and you can act accordingly.
We never no what the future will bring, but the success of the business may... just may... have him feeling good and your professionalism and DB efforts are likely to be noticed... and he might come calling for personal time... for R...
