I work with this girl (I'm quitting soon) who i recently slept with a couple times, she's been dating this beta guy off and on for a long time. She was fucked me for a while while they were together and then she dumped him but we had a falling out cause she's actually a self entitled spoiled cunt (long story but she is) and then crawled back to him when i wouldn't take her. She was a complete bitch (great sex shitty attitude a lot of the time, wants to use people and only cares about herself) and a slut (hence why I wouldn't take her). I'm considering telling her boyfriend that she cheated just to get back at her because I've never had anyone disrespect me as much as she did. I don't know him at all, He's not my bro and i don't owe him anything but i want to knock her down a notch.

My only worries: I've been at this job for quite awhile and really need this reference, I'll be leaving at the end of the month. I'm worried she could somehow wreck this for me.

This guy is scrawny and Beta, I'm worried about some sort of passive aggressive retaliation, such as property damage etc. (this has been like his only girlfriend ever)

I'm worried about her claiming false rape, we had sex drunk a few times and she was high another couple of times. I've got plenty of evidence though. I've got every text we've ever sent, including a nude photo, and us talking about how we like to fuck each other. I've also got a note where she claims how much she wants to be in my life and that she will change and that she knows I'm perfect for her. I also have an audio recording of her admitting to cheating with me, and I also have an audio recording of us having sex. (my state allows 1 party consent).