This seems to need a lot more thought
his plan to take pension early needs really careful thinking - is that necessary because it will cost you both big in the longer term
I have often supported the family when DH has had spells of unemployment , and he did retire ahead of me for various reasons but this was a mutual choice
you should be prepared to support him however as you admit his job has taken its toll so he needs to leave and have at least some break
… but taking pension early almost suggests giving up all together and really you need a plan for both your retirement at some point
so a spreadsheet with years marked out till you are say mid 80s identifying what income you might have
expenses based on current level of spend and add for inflation
and work out what is practical and sensible
it’s rather odd that you have his money and your money
it’s rather odd that he could take the lump
sum and use it to give his share each month and you would be happy , but spending it upfront to reduce costs is making you want more of “his” money ( his and hers in a marriage is off)
the main thing is that if his pension is so small that it can’t cover anything towards bills it’s going to be too small when you retire
yes at some point you will get state pension - and that might be when you need more help in the house , perhaps unable to drive anymore. Or you may get ill and need to retire next year … what would happen then ?
if he plans to go back to work , leave the pension alone - it will still be there to pay off the house in a decades time and manage on one income - even with a mortgage holiday if needed - that would provide get to work motivation
also if he doesn’t do paid work you should find your workload decreases as he should be doing all household stuff