I’m sorry to hear about your situation. My simple advice is this: If there is even a thought that leads you to question your spouses actions, or even the slightest suspicion, chances are…you’re being duped.
Follow the “Signs & Signals” page on this site. It is up to US to protect ourselves, we can not rely on local, state and federal agencies.
You could compile a folder of evidence and bring it directly, in person, to your local ICE office in your State. The only thing you can do is report it. You could also contact an attorney for information regarding annulment of the marriage. If your immigrant spouse is as blatant in her disregard for the law as you have stated, you may have a shot at annulment. Good luck.