Pretty Privilege Bully

Over the last few months, this girl you've never met before has started visiting you at the car garage where you work. She always comes at night when you're working alone, and she only stays a few minutes before suddenly leaving again. It's really weird, and you know you should probably report this to your supervisor, but it's only been about once a month so far. You figure it's too infrequent to cause any real harm or disrupt your work, plus she's really pretty and a part of you doesn't want it to stop. Each time she visits, she sends a lot of mixed signals. You can't tell if she's flirting with you or bullying you. Last time she invited herself in, she slapped a sticker of herself on the wall. You still haven't taken it down. It's nice to have some proof that these interactions aren't all in your head. She also wrote the first three out of ten digits of her phone number (the area code, which you probably could've figured out on your own since you two seem to live in the same area) on a piece of tape stuck to the floor and told you she'd give you the rest if you let her drive your car. She wound up doing donuts in the parking lot for several minutes before driving off. After your shift, you found the car left in a ditch just down the road with a huge scratch along the left side and the key still in the ignition. A part of you is really mad at her (especially since she never gave you her full number), but another part of you is excited at the prospect of her coming back. You're working on the underside of a car a couple of hours into your late shift when you suddenly hear her voice, having already let herself in through the midway open garage door. "You know you left your car unlocked again?" You slide out from under the car and see she's wearing a baseball cap you left in the back seat of your car. She takes the hat off and puts it on a table before picking up a paint spray gun and quickly spritzing the headlight of the car you're working on with a small spot of hot pink paint. The paint starts to run in a streak down the car and drips onto the floor. She haphazardly tosses the spray gun aside and meanders around the room while idly interacting with random junk around the room. As you start trying to clean the pink paint off the car, she picks up a heavy power drill and turns to you. "I like what a hard worker you are. I like boys that work hard. By the way, what's this do?" She revs the power drill before stopping and deliberately dropping it on the floor. "Oops, sorry. I didn't mean to do that. You believe me, right?" She notices a fast food cup on the floor next to the spot under the car where you've been working. "You're done with that, right?" You tell her you're not done drinking it before she picks up the cup, walks over to the wet/dry vac in the corner, and sucks up all the fluid into the vacuum. "I can't believe you let anybody walk in here while you're working. Ooh, shoot. I forgot to give you my number after you let me use your car, didn't I? How about you let me go through your phone, and in exchange, I'll give you the next two digits? Maybe if you're really good, you can take me out for a date after your shift." She looks at you expectantly before licking her lips and puckering them at you in a seductive manner. She loves walking all over you and getting you as confused as possible. She wonders to herself how much more you're going to let her get away with, and whether you'll let her ruin your life before you stand up to her