If its as she said where she was originally went there on a nursing "contract" and they agency placed her with him, then her visa was and (using her words of she'll still be his nurse) is still is legit. Nothing she said remotely encroaches on immigration/visa fraud. She's there on a nursing work visa, she was and says still will be his travel nurse. If the dude wasnt pimping her out and instead the content income was paid out to her, then yea shed likely be breaking the terms of an employer sponsored visa.
If gonna take anything away from this, its her just making it even more clear the whole break up story is bullshit. If "keeping it professional now" in fulfilling her travel nurse duties requires her to still fuck him(aka "he'll still be in my videos" ) then shit, i need to move there and get me a nurse too! LMAO