can marriage still work if separated ?

[army wife separated]

I just recently got separated, 1wk we are living separate looking into a separation agreement. We have three kids two biological one i had befoe we met...am from africa been here five yrs and since we met we had major ups and downs and affairs on both sides....we still remained married and continued to make it work..we moved and decided to start over..been going to marriage counseling till last week when everything exploded on the discussion on finances : briefly i feel we have to be one in everything but my estranged hubby works, i stay at home and when the money comes in he runs the finances and pays his bills not myne...has one account where all the money goes to and has not put me in it.
so with that said..he didnt agree on beingone as a couple...so we get home and says he wants a separation and he wants me to leave...so i left the next day withthe kids and staying at a neighbours till i get myself situated..i still love him but he has a lawyer and seems hopeless, any advice?