We are both on the mortgage but he pays it at the minute. This was not originally the plan, we was going to split things but he’s job took off. I have bills such as paying for the TV, paying for the sofas monthly, my car finance, my phone, pet insurance, car insurance, it sounds little but I work 2 days a week so it’s a big chunk that is taken out of my wages.
My first question is why does a high earner like your husband have sofas on finance?! But getting back to the point...
This is the weirdest way of splitting finances between you.
DH and I don't have kids and I'm the higher earner, so we don't have similar circumstances to you. But regardless, I know that the ONLY way of making it work when there is a huge disparity between you - ie, one of you works full time and the other 2 days a week - is to pool ALL of your money into one account.
Give yourselves some fun money each too. But all mortgage, bills, furniture, holidays, kids activities, kids clothes - everything - comes out of your joint account.
For DH and me, as the higher earner, who also gets bonuses, our previous way of doing things (where we paid a proportionate amount of our wages into a joint account) enabled me to build up a huge savings pot and left my husband with very little. I was able to 'treat' us to things like holidays, which made me feel like I paid for everything (which I resented) and made my DH feel small.
We now pool everything so we are equal and it's a much nicer arrangement all round.