ewww, tsk. It's a sextape, online. . .I mean if you left on bad terms then out of the blue you come in and tell them something that you found it, it may be seen like your trying to dig up dirt on that said person. . idk.

That was my first thought about that. I say something and I might get blamed for something I didn't know existed until I saw it online.

Personally considering how things ended, I would say just leave it be as you don't have any obligations to this person. However if you really feel like telling them is important, I would suggest possibly letting a mutual friend be the one to tell them about it, so you won't be held responsible for anything.

annonymously send it to them.

if you know their site account or email, create a new one and link it to them with a quick. "found this by accident. thought you'd wanna know"