Dating
so i started dating someone, and for context, both me and the partner are polyamorous, and also 15 years old. i'm going to call the partner M, for purposes of clarification.
so i had to comfort them last night about the third breakup they've had in a month. the thing that feels surreal about this time, however, is that i helped the person who broke up with M with writing the break up message.
they admitted they might kill themselves if i broke up with them, prompting me to respond that i'd try my best to stay with them for as long as possible. they have BPD and have been having episodes quite frequently lately due to an influx of people breaking up with them, so i'm thinking it might be a mental illness thing? i would not know, all i have is autism and ADHD.
i also know that i told them expressly to not discuss NSFW with me, and yet they say on call about how they're taking the BDSM test and invite us to take it too.
i've felt queasy about them ever since we started dating, but this whole thing is really the nail on the head. i talked over it with my primary partner and M's ex-partner, and now i wanna break up with them, but honestly i just feel scared and like- hyper-connected to them, so- watch me do nothing about this. but seriously does anyone know what i should do? and please dont say "just break up with them", it isn't that easy. thank you so much for any help.