Well, it's only matter of time before they turn around and pull the rug out from underneath you...when you least expect it to.
Don't allow youself to fall for it again. You can still be really nice to her and everything, but this time, just be ready for her to turn on you (again) at any given moment. Just when you think you're really 'getting along' in your mind, she could easily be reporting you to some manager for some weird bizarre ridiculous thing.
Hey guys, time to say night night. Got an early start tomorrow so I am off to bed. (Not to mention I am pretty pooped.)
Night!
Well, if she talks about me like she did today, I honestly don't care. I'm indifferent towards what other people say.