Work out what he needs and try and address that. Is it reassurance you still love him, is it time, is it sex, is it support -you do not need to supply it but at least you will know what he feels he 'needs'.
Just out of interest how much tidying is there to do? If you are not yet back at work and you are home in the day, do you need to tidy when he is home or just before?
Can you have all the to us out earlier in the day and have limited or quieter options I'm late afternoon.
Does your toddler go to bed before he gets home?
Maybe he would rather have your company than a tidy house.
Is your older child able to help so you are not too frazzled?
Are you slaving over a hit stove when your hubby would prefer steak and oven chips and more of your time?
Sadly, his being 'moody' and 'sulky' is probably pretty unappealing. It sounds like he works very ing hours. Does he need to be out 7-7?
I think you both need to sit down and work out what you can both do to make quality time together.
It is tough, no easy answers. When you govbscj to work things will be quite pressed unless you can find a way to prioritize what is important for you both and the kids.
When you work out how to do it, come back and tell us how!