Your story must be being played out in hundreds of thousands of homes in the UK. My dad was like this with my mum, thinking that the house was his because he paid the mortgage. He even threatened to burn it down rather than let her have half if they divorced. How ridiculous is that!
Your username sums up the situation. You probably are his lowest priority. He finds football more interesting than you by the sounds of it and from reading your thread probably does find you a disappointment. He therefore really cant be bothered even having the discussions that you crave as you mean so little to him.
This isnt meant as a slur on you as I am sure you are anything but a disappointment but some men seem to want their relationships to stay the same as it was in the 6 months after you met. This never happens of course as children come along and things change but some men just cant seem to get their head around this so they criticise their wives weight, or their appearance or the fact they dont work whilst refusing to acknowledge that looking after children is the hardest job in the world and one which 95% of men would not want to do in a million years.
What they are though is cowards, because if they are so disappointed then why not walk away and start again? They like the fact that someone is around looking after their kids, they like the house being tidy and food on the table, they like the fact that their friends see them as Mr family man but they are not prepared to put any effort into their relationships. They say they cant stop you walking away but if you do then it would be you who broke the family up so your children would be sympathetic to them because "mummy wasnt happy with me".....It keeps them on the pedestal that they always want to be on.
For those that think he wants things to change so everyone can live happy ever after, you are kidding yourselves and believing that men think like women do when it comes to relationships.
In this situation it is clear that he is not fussed either way and isnt going to make any changes so that leaves the ball completely in your court. The only person that can make changes to their life is YOU and you are wasting your time even trying to change him because he wont change.
You need to force the issue with the solicitors and make a new life for you and the children or you could end up very bitter indeed like my long suffering mother is.