I do hope your DH recovers soon.
My DH, after a triple bypass with complications, heart pacemaker and landing himself in hospital for a week followed by having the Riot Act read to him by his GP has finally accepted that we have to employ an electrician to do the electrical work on our current house renovation.
He is an excellent electrician and several professional electricians have been happy to work alongside him and have approved his work, so that is not the problem, but in his determination to keep doing electrics, which he loves doing, he was working way above his fitness level and making his health even worse, until as said, ending up in hospital.
and, yes, divorce, frequently occurred to me.