it feels almost like your H has this idea that he wasnt happy with his life so he can some how hit a reset button and get a do over. I wouldnt be surprised if somewhere along the way you find out he's decided to go back to college because deep down he always wanted to be a Architect/Fireman/Beautician either that or he's joined a circus.
But like all the advice you've been given its a case of dont worry about it. Speak to a lawyer to know how you want to take some things forward an enjoy the good things your situation has done for your life (like being close to your mum and dad, us etc.)
I hope the new job goes well, enjoy your first day
Both mid 30s, 2 young kids BD 7sep14 XW moved on long ago, now living with OM1 D paperwork in progress
etc.)