<human>: Can you give me a shortened version of the text?

hi guys,

silly story, but soooo satisfying. 
i (f/24) finally got to do it. take revenge on that stupid girl (26), my bf(26) cheated on me with.

for the last 10 months, she made my life living hell. i work in a beauty salon and she used to come in twice a months, always bitching around. i begged her to go to another salon, and even offered her to pay for her first three sessions. she "kindly" refused, and asked if it was because "i fuxxxx your boyfriend"? followed by "i fuxxxx him once, i'll fuxx him again".

after having a huge argument about it, my boss told her not to come by ever again.
still, she came in today. i didn't want to argue with her, so i let her stay. she wanted to get bleached blonde highlights, so she got bleached blonde highlights. for those of you who are not familiar with how the bleach looks before it is applied to hair - it's blue. so i thought, she wouldn't notice, if i got two cups of blue stuff - one for the bleach, and one for some blue dye. she didn't. 

after i washed the stuff out of her hair, she had one tiny (1.0" - 1.5") blue streak in her bottom hair. she got angry, but i told her that i'm so sorry, but i don't know how it got there. maybe there's something wrong with the bleach i used, OR maybe i'm just confused, because i'm pregnant with his child.

i then told her, her treatment is on me and asked her to leave. 
for the first time, after 10 months of hell, she was speechless. i hope she cried a little. :D
<bot>: this girl was bugging me for the last few months; so today i took my revenge, by dyeing a small part of her hair blue. silly - yes, but it felt so great :D