<human>: Can you condense the text into three sentences or less?

So technically not a TIFU, more of a WIFU (When I Fucked Up) 

After dating this girl in my dorm building for a month, I decided to break up with her since I wasn't enjoying any time with her and found myself looking for excuses to not be with her.  

A month passed since we broke up, and she files a harassment charge against me, saying I had written crude things on the white board outside her room.  (Side note: Her room is on the 4th floor in another section of the dorms, and mine is on 1st floor, so I'm almost never up there.  Assumptions much?)  Talked to the hall director who lives 2 doors away from me and she drops the charge.  (Another side note: I work in the dorms collecting trash, so the HD is my boss, and knows I'm not a fuck-head.)  Turns out the girl 2 doors down from my Ex confessed to writing the shit.  

I never heard back from my Ex on anything (let alone an apology), so I decided to finally block her.  I tried doing it from my phone, and accidentally hit the poke button.  I was going frantic and all my buddies were with me in the lounge when I did this.  One of them said "Dude, you better tell the HD, your Ex might try and file another harassment charge!"  I had to e-mail my HD, and tell her I accidentally poked my Ex while trying to block her.  (The fact that I had to send an e-mail like that killed some of my faith in humanity for that day.)  

Luckily, my HD got the message, and she was super cool about it just saying "Alright, thanks for letting me know."  Thank god for my buddy's quick thinking, because my friends from her floor told me she was going ape-shit over it and complaining to everybody.
<bot>: Tried blocking my crazy Ex-GF from my phone, accidentally poked her and set her off.  Lesson learned: Don't do anything 'big' on FaceBook unless it's from a PC.