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I am a Canadian citizen.

when I had received the email with the account information and her UCI I showed it to her and she forwarded it to herself. She withdrew from the sponsorship on her own. I am unsure what she told citizenship and immigration council. I am unsure if she is representing herself as me.
Are you sure she cancelled/withdrew her sponsorship? Did you receive any communication/update from IRCC?

She is currently without status. Not sure though if she is visa-exempt or has 6 months' visitor status
 
That I am unsure of as well. She showed me a screenshot of a successful application change, I am unsure what she actually did. She now has her work permit.
 
That I am unsure of as well. She showed me a screenshot of a successful application change, I am unsure what she actually did. She now has her work permit.
You mean she has received an OWP on the back of an inland spousal PR application?
 
If she is abusing you and blackmailing you, I highly doubt she withdrew the spousal application on her own. You need to (1) contact the police and make a report, and (2) contact IRCC and let them know that the marriage has broken down and you wish to withdraw the sponsorship.

If you do not, and she goes on welfare or other social assistance, you will be responsible to pay it all.
 
I have done both.
I believe she is misleading you into thinking that she has withdrawn the application. I don't think it is possible for her to do it without IRCC informing you.

Also, if she had stated that she was no longer interested in being sponsored then she would not have got an OWP. The timelines don't match with her claims