DH and I have decided to split up. He wants me to stay in the house and have usual access to the joint account. He has the option to work away from home on expenses and will be doing this as much as possible. I'm not working due to health issues so I'll be taking the children to school and looking after them. He is an alcoholic but says he is sober at the moment.
Do we need to do anything official? At the moment we're just telling the children Daddy has to work away a lot. We have separate bedrooms and bathrooms at home.