I owned my own house when I met my 'husband'. Since then, he

I owned my own house when I met my 'husband'. Since then, he has done exactly what he likes. Down the pub everyday. Gambling and treating me with no respect and leaving me feeling lonely and desperate. I have still maintained the house and kept it clean. He has always said that it was my house and why should he bother. Now that we are getting divorced, he says half is his. I have a lot less now then when I maarried him. He has never invested in the house apart from a conservatory, which was my idea to put value on the house. I have paid half to this addition. I would like to stay in my house. But I understand that the law starts at 50 percent. This seems so unfair. I paint and clean and keep the house in good order. He goes to the pub and is in bed at 6 oclock. Is it worth fighting. He says he wants 80 thousnd pounds. The house is worth about 210 thousand. Although I have had it on the market and cant sell. I am scared of going to court because of the costs. I thought maybe he would accept 40 thousand. There is so much more to this. Abuse, though not in an obvious way, and the gambling and me paying off debts. I have applied for decree nisi, which has been accepted. and he had returned the form. Do I accept his demand or fight it. Is it worth the costs.