I think it's in the best interests of the kids to be living in the family home as much as possible and I'm the best person to look after them.
In the event of a D, if the kids are staying with me in the family home then it also gives me a chance of keeping the home at least until the kids leave school. Losing the home would likely mean me being unable to afford to live in the local area and so not being able to have the kids much with me.
I have to make a move now before the kids go back to school after the summer holidays to ensure they have as normal a routine as possible.
I don't want a D so I don't want to make it easier for W but on the other-hand it seems she does want a D and so I have to protect myself as much as possible before it's too late and risk losing the kids and home too. Another thought I have is that if I've got the kids a lot in the family home then it might make it easier for W to return, although if we did get back together then I'm certain we'd both want a fresh start in a new home.