How well did you know your wife before you married her? I can't tell if you mean she has started all of this odd and controlling behavior in the last six months. She sounds disturbed, but I agree with you that she also may be trying to lay groundwork for blaming you for "abuse." People can be disturbed and plotting.

Is there an organization in your community supportive of people of your country of origin? You need to make some friends and get some emotional support.

If you have joint bank accounts, you should have joint access. Call the bank from outside the house and ask to have that explained to you. And I would set up a different bank account only I could access and switch my pay to be deposited there, immediately. If you are the sole support of your wife, then you could transfer each payday what you think is reasonable to the joint account for her to maintain the house. I'd buy a new bed, too.

I also think she needs to see a doctor. If she refuses to go, call her doctor and tell him/her what is going on. Same with marital counseling. Go yourself if you have to. If you are seen as trying to help the situation her claims that you are abusing her will be more likely to be seen as the unreasonable ideas originating in her own head.

I hope this helps.