To keep myself financially safe?

[planAplanB]

Start of a long divorce due to being forced to continue living together. Neither of us can afford to move out and house is going to take a long time to sell. STBEXH pays 80% of bills and I pay 20% based on our incomes. He's been tucking a lot of his surplus salary into a savings account that can't be touched for a year. In the meantime, his company can't pay him this month plus he's still owed expenses, meaning he's asked me to cover all the bills this month. This is more than I earn and will deplete my savings.
Initially I thought' fine it's all joint money, once my savings are gone, they're gone.' But AIBU to think that if I put all my savings into our bills account, I'd be left with just a couple of hundred and would that make me financially vulnerable? I wouldn't have 'emergency funds' to leave if I needed to.
I'm cross that once he's paid his (major) share of the outgoings that he's not saved the extra 'for a rainy day' and now he's come up short.
I don't even fully trust him (he had affair) so how do I even know where his salary has been going and that he's not receiving a pay check this month?
Him asking me to drain my account puts me in a vulnerable position but then he'll say that he's been paying most of the bills all this time, so I should step up. I'm only on minimum wage!

YANBU. Push back and tell him you don't have the money.

You're very sensible to keep some savings, you may well need it in the coming months.

Do not drain your accounts sometimes partners give a false sense of security then when they gained your trust the water works start, be firm you work say this is all i can afford 20% take it or leave it, honestly i wish i said that to mine before he rinsed me if he cared he would never ask you to drain your account

say to him this is all i can afford let's look at others ways he should get second job if his struggling

You are very right to trust your instincts go with your gut

Absolutely, categorically do NOT drain your savings.
It will be better to contact the companies and be late on bills than to be so vulnerable.

It is not all joint money because it is scarily easy to hide secret savings these days.

He is looking out for HIS best interests, you need to do the same.

It would be utterly foolish to leave yourself with nothing, especially as the lower earner.

I wouldn’t either tbh. So he drains your savings and next month says you need to pay half going forward, what do you do?

He’s playing a game here - and don’t let it happens. All savings accounts can be accessed, even if at a cost. That’s what he needs to do - break into it and cough up

As a pp said he can get at his savings, he just doesn’t want to. What he is trying to do is leave you with no money so he has control going forward.

I would also be pointing out to him that it’s a breach of National Minimum Wage Regulations for his employer not to pay him. The maximum pay period is one month.

He is playing you so a firm no I am paying my share only.

You need access to money to pay for your solicitor.

If he leaves you with no savings, he can access legal advice but you can't.

I'd be very wary if I were you.