Story time! Girl who keeps liking my old posts

So i have this Tumblr account, right? About a year ago, i saw this girl, she has a 'pomni pfp', And any time they would get criticized, they would just completely just curse out, say slurs, freak out at that person. So as the petty person i used to be, i said some shit like "Yeah, this is what you don't wanna be when you grow up.". And of course, they freaked out at me too. 

So after that, they starting liking my dog man posts, i then did a little research on this person, and turns out that this girl was actually a yandere well known in the Tumblr community