Found a friend's private nude photos online, possibly posted by her husband, possibly without her knowledge. what would you do if you were me?

So I(33m) was scrolling an adult anonymous image board. I recognized an old friend, whom I was good friends with a while back but haven't talked to her in a about 4 years. The poster appeared to be her husband of almost ten years(and bf of and on several years prior). I'm not sure if I should just tell her, or just mind my own business. Honestly at first I thought she probably knew because she's kinda freaky, so it might have been with her permission or she might not care at all. But when I tried to get more information on the board, the poster deleted them. Then I saw them posted again a few days later. And then deleted again. I checked her facebook and based on tattoos and hair dye, the photos are from just a few weeks ago to 2 months ago. What would you guys do in my position? I don't want to ruin her marriage but she definitely deserves to know who sharing images of her body.
ETS: her face is visible in many of these.


Source.