So forgetting the relationship side of things,
You have prenups so assests /debts are your own to sort out.
He owns a house which he rents out the income is his alone, he pays any costs on that house.
You own the house you both live in and pay all mortgage etc related costs. He has lent you 150k which you pay interest on, this is a type of private mortage so you should be clearing capital over an agree time perios not just paying interest btw.
So if we treat his 150k as a 'private mortage' which you are paying yourself you are full owner of the family home.
He shoulod then pay rent to live in the family home, be that half costs, or a rent simialr to that paid in your local area is up to you to decide.
So as I see it you spilt, electricity, gas, contents insurance, food, school costs, car costs etc and then he pays you rent to live in your house on top of his share.
How you split the household bills can be either 50/50 or % of income or so that you both get equal disposable income, which ever you think is fair.