Chareen I really hope you are starting to see the real him.
you would earn 25k if you were full time. He is costing you 10k per year! I had a suspicion he thought women are after men's money. Really it's the other way round. You must pay half of everything despite him costing you 10k per annum. You must save the same size deposit. You only want to marry due to his great income (!?!). He is the gold digger!
Where does the child benefit go?
Regarding marriage isn't important to him, if that's truly the case he would have no objection to marrying. Marriage is important to him - he doesn't want the commitment (financially).
He will pack his job in, okay no problem - no house for you Mr gold digger.
Mwah ha ha - get the kids ready before you go to work... I wish him luck on his contact weekends - he may find his life is a little harder.
When you tell him it's over, Wait for:- I want 50% parental responsibility. I'll just buy the kids what they need when they need it. You are a gold digger/money grabbing bitch if you go through CMS. You only get a bingo full house when he calls you 'bad mum' so listen out for that gem. If you get called crazy/mental or insane, you win the jackpot!
Good luck op, the worm will wiggle on the hook when you tell him to leave (is your rent lower as its a relative?). He will briefly change - re read this thread.