I'm separated from my partner of 20 years. We are not married. We have 3 children together which i will be keeping with me. I want to be able to buy my ex out of the mortgage. As we are not married will it be a 50/50 split of the assets or because I'm keeping the kids and need the house would i get a bigger %. I got a 43% discount from the council towards the house and my parents are still owed £30000 as they helped us with buying the house. I also puy £10000 of inheritance towards it.