I don't want to be putting the boot in to you, I really don't, so please don't take this the wrong way.
The thing is, there is at the moment a campaign against abusive relationships, there are radio adverts where a young woman is talking, about how being with him is better than having no boyfriend............right?
YOU are in an abusive relationship!
Never mind this "I put up with it because I love him" rubbish. Just take a step back and look.
This man is the classic CLASSIC example of the white guy who can't get a girlfriend from his own country, because he is a bad tempered or violent or ill mannered or drug user or just has a plain bad nasty attitude............and is probably ugly and fat as well.
The British or maybe moreso Australian woman will not put up with this rubbish, and will dump him, so he goes to Thailand or the Philippines, or maybe Kosovo where there are plenty of beautiful women, where there is a stereotype that the women are submissive and quiet, and where there are moral women who also will put up with such crap, because they're taught to respect their men, and moreso because they see it as a way out of a poor background.
Please let me assure you not all British men are like this piece of

of a husband of yours.
Just why do you think you are his third wife? Why couldn't he keep the other two? Well there can be many reasons someone marries twice, but a woman should always find out why the previous one broke down. Fact is women are normally smaller and weaker than men, and more vunerable.
Your story has made me really angry, I don't often go off on one, but I just have done.
Grief, he even let you pay for his keep - by not contributing to you and letting you pay off household stuff. Not even a real man!!
The big problem here is, you need that ILR. I can echo what others have said, in that I am sure I have heard that in the case of domestic violence in a relationship, and where someone has made a contributing life here - as you clearly have working etc, that you won't necessarily be deported, that there might be ways.
I could of course also be wrong. Perhaps getting a visit to the local citizens advice bureau would be a start. They might be able to point you in the direction of a local refugee support place - so ok you aren't one of those but they will have a good idea where you can get legal help
Above all, good luck to you, and do keep coming on here. You now need to really start doing your research as to getting around this situation