I dated this American lady for a while and I caught her cheating and broke up with her. After some months I met my wife, also an American and we git it off and got married. I have been approved for CR1 at uscis and awaiting NVC now. The thing is that my ex has been on my case ever since she found out I got married. She has been trying her best to get me back regardless of my marriage, she has sent several mails over months apologizing to try to get my back and I have religiously refused her at ever turn. She sent me a message some days ago after some months of silence begging that I forgive her and she cried everyday and feels empty and I responded that I have moved on with my life and I love my wife. She figured out she’s been rejected and I’ve truly moved on and she swears in another mail that I am dangerous and I’m a threat to her and her family, She took to insulting my wife and I calling me a scammer and my wife a ho. Next thing she tags me to a mail to the fraud unit of the justice department reporting me to them and accusing me for fraud. Citing that I defrauded her. Mind you while we were dating, I never for once asked this lady for money. She voluntarily bought gifts like on my birthday and when she visited . She occasionally offered money which I accepted. But I dated her and we broke up because she was cheating and she is looking for a way to ensure I don’t make it home to my family. What steps do I take to prove my innocence to the justice department/ I have all the receipts to prove my innocence and she dosent have one single evidence against me and my lovely wife.