Your husband is an addict, OP.
He's not addicted to alcohol or drugs or gambling, he's addicted to seeing his bank balance increase each month. Admittedly that's a healthier thing to be addicted to, but it is still causing and will continue to cause issues for you.
What is his savings target based on? Is it an arbitrary figure or is he saving for something in particular? Because I suspect that if it's the former, once he hits that figure he'll get a different, bigger figure in his head, and if it's the latter, as soon as he's got what he was saving for he'll want to save for the next thing.
Being frugal isn't a bad thing, and indeed in some cases it is necessary because it's the only way to make ends meet. Having a financial safety net is also a good thing, and I can see why that would be important to him if he grew up without financial security.
But he's in danger of throwing away other things that are important - his relationship with you and his enjoyment of life in general - by being so rigid.
I am also living in my husband's home country, having moved here to marry him. But in our case, I am the higher earner and he has actually been unemployed for 8 months, although he has still has an income due to a long period of severance pay which has only just ended. For this reason he hasn't needed me to financially support him so far, and he's just received a job offer. But if he had not got another job before his severance pay ran out, I would obviously have funded him because that's what you do when you're married, isn't it? For better, for worse, for richer, for poorer and all that.
Your setup does sound a bit miserable. If he won't even contemplate fixing the roof I doubt you do anything as frivolous as go on holiday, do you?
That said, if he was paying all the joint bills during your period of unemployment but you have nothing left in your bank account, how has that happened? I get that you only have half as much disposable income as he does once your respective contributions to the family finances are paid, but it sounds like he's building a huge rainy day fund for himself, but you don't have one. When you're employed, what are your spending habits like? Do you spend everything you've got once bills are paid, or do you save some? If you spend it all and don't save, you don't sound very financially compatible.