Not something I've been able to find much of but..
Femdom/yandere hacker stalks MC online and eventually offline. Eventually blackmails them for progressively more and more exhibitionistic, degrading things, essentially just giving her more ammo for black mail. If you've seen Black Mirror, imagine s303 Shut up and Dance except the ending payout is confession to MC

Recently stumbled on Olympia of Infidelity scratches the itch a bit