if this is genuine (and that's a huge if), his new practice set-up is going to go about as well as his new-job-hunting did previously.
ie, it won't.
you've taught him that if he just keeps his head down for a few weeks, fobs you off with some basic platitudes, and vague excuses, you'll happily settle into the new rhythm.
he'll just re-set his expectations, and then in 12 months when still nothing has progressed, he'll say "well, we're managing fine - perhaps i'll just retire", just expecting you to carry the financial load, paying for his jollies.
may i ask what you love about him? and i mean what do you love about him now, not what you loved about him previously?
he's passive, weak-willed, squirrelly, utterly dishonest - both emotionally and intellectually, he has little to no respect for you, or your children, and his every action so far indicate that he's extremely avoidant.
when i'm out walking with my wife, and we're arm in arm - it makes me happy because i'm proud of who she is, of decisions she's made, of how she continues to try and manage the difficulties in her life, and what she puts into the parts of her life that she values.
when you walk arm in arm with your husband, what makes you feel good about it?