1. They don't care if they upset you.

You're on a deadline and they're not busy - so what do they do? Go to your desk when you're freaking out about getting that report in just to break the concentration and tell you they're bored.
2. You run an idea by the acquaintance and they pass it off as their own.
Someone's gotta get ahead right?
3. They wanna go to lunch with you every.single.day.
4. They follow you when you leave for the day - like a fucking puppy.

Want a drink? Let's grab dinner! What train are you taking? Can I come with you? NO NO NO.
5. They just don't understand why they're not, like, your best friend yet.
"But we spend everyday together - why won't you tell me about your weekend?"
6. They STILL won't tell you when your mascara line is wrong - boogers in your nose - or you have eye gunk.
Bitch.