My homie was in the same situation as you few months ago .his gf would do the same things ,and send him pics to guilt trip him .it was very toxic and that relationship only got worse with time because he was very desperate to leave her so it was just a big mess .
Sadly for your case , you can actually get in trouble if that happens , don’t shoot in the dark . I would say let the relationship dry out , be cold and stop putting efforts , eventually she’ll lose interest and that’s ur time .
Don’t make it sudden for her to take an extreme step . If you do it out of nowhere she’s gonna take it to her heart and you might be cooked .