The Brief: Zombieing is when someone with whom you have ceased all contact suddenly reaches out to you, usually online.
Ex-friends, lovers, and spouses may “come back from the dead” in a process nicknamed zombieing. A similarly spook-themed relationship term to ghosting, zombieing may occur after someone has been ghosted.
Ghosting or getting ghosted is annoying, yeah of course, but equally annoying is zombieing where you stop talking to someone and they try to slowly re-enter your life via social media.
— *Prettier Online* (@awkwardbachward) October 23, 2018