general neighbors again

Ohhhhhhh, I’m all creeped out. I mean, I was getting home past 1 am so maybe I have no case for being Grumpy Old Lady, but there were seven of them hanging out on the porch (I’d seen at least three others on the back balcony as I drove up) when I got home.
They are, as I suspected, about nineteen. One greeted me with “hey beautiful,” which honestly? I’m closer to your mom’s age than yours. Don’t pull that. My response was “try to keep it down this time, you guys have been keeping me up all night.” I didn’t make eye contact. I have no balls. They all muttered “sorry.”
For some reason, I then locked my door, came upstairs, and cried into my cat for a minute. I have no idea why I was so shaken by seeing and speaking to these people I’ve been wishing violence upon for two weeks.
They are not, for the record, keeping it down at all.
I wonder how many of them actually live there.
WHY DO THEY HAVE A PARTY EVERY NIGHT*
*I know the ironic answer to this question. It’s because they have the good apartment.