Indeed Pickle brings a wise head and personal experience to our gay friends who post on here.
I think your partner is stressed, and has got his work / life balance out of kilter.
Why not book a weekend away without the pressure of work, and neutral territory, he won't be stressing about work, and you won;t be looking around at what needs to be done around the home.
On the second day, go for a long walk, and have a good talk, as Pickle suggests. Hopefully with some 'together' time and away from your daily lives, you can talk to each other and arrange strategies so you get more time together, and he does his share around the house.
Work is great, but it's always there, loving partners may not be.
Good luck, hope you sort this out.