It was nowhere near as horrifying as situation as this, but when I was 19 I dated a guy for around two weeks before he showed up at my house in the middle of the night, drunk, with bloody knuckles and a torn shirt. He barged in as soon as I opened the door and he couldn't articulate what had happened or why he came to my house unannounced, but he fervently accused me of cheating on him because he claimed to have seen a "hairy-crotched man" climbing out of my bedroom window when he arrived at the house...I had only been on maybe three dates with this guy and we were certainly not exclusive but regardless, I had been asleep in my bed alone when he came banging on the door. I can't remember exactly how it went down now but I somehow eventually got him to step back outside the threshold of my house and slammed the door in his face then went back to bed. Early the next morning I woke up and saw his car keys were on the floor so I went out to the driveway and found him passed out slumped against his car. Tossed his keys on his lap and prayed he woke up before any of the neighbors woke up. I never saw him again after that but he sent literally THOUSANDS of the most bizarre text messages, emails, phone calls...apologizing, then accusing, then begging, then threatening. For a 19 year old living alone on the opposite side of the country from any friends or family, it was pretty unnerving.