You may remove conditions without your spouse for the following reasons: 1) death; 2) you or your children are battered or abused 3) hardship to you if you are removed and 4) divorce. You might have more than one ground to remove conditions if she files for the divorce. You allege emotional, mental and physical abuse. You should document this as this may help you when it comes to removal of conditions. Keep a detailed journal of things she says and does to you - like she knows the laws better, her plans to force you sign undated documents as a threat to divorce or deportation as she said she wont file until you leave the country. If you suspect she is cheating on you and you can afford a detective, you will have grounds to file on adultery.
If you want a divorce just file for one.
You can still keep your green card if you file, you will need the waiver of the joint filing requirement to remove the condition on your green card.
If you know she will not sign to remove the conditions and you are not together then it is prudent to file for the divorce so you can use it to obtain a waiver and keep your green card.
Life is too short to struggle with someone in a marriage that is supposed to be a place of nurture and love.
You are welcome to use the link provided below to contact me if you wish.