I've vented this already a bunch of times but whatevs I'll share it yet again. It's the causing pain one.
Context. I stayed alive for years only for the sake of others. I knew how much pain it would inflict on my loved ones, and as I run on guilt as fuel I knew I could never bring myself to cause them that. Enough time trapped with overwhelming desire to die but unable to fulfill it you start getting creative out of desperation. You try to find loopholes. I fantasized about disappearing, faking it good so it seemed I had run away and was living my best life out there as a prick who never wrote back, then commit suicide secretly in such a way my body would never be found and thus no one would ever know for sure what happened to me. That I thought would lessen the pain on others enough so that I could justify it to myself.
I came very close. Made a very detailed plan, part of which def would require some more rework (burying yourself is hard) but I would've managed with alternatives I'm sure.
Apart from that initial discouragement that the plan needed more work and I couldn't do it right away, another thing happened.
As I was going through this, someone I cared a lot about here attempted. They said they'd write back if they chickened out or survived and landed in a hospital. But pretty much disappeared on me. Which was my plan (!!!) for the people that cared about me. And I knew this person for a ridicule ammount of time, and yet I felt so awful and anxious with that daily uncertainty. Kept checking inbox, looking for news that could be them. Didn't know if they were ok, dead or alive. I needed closure so I did some detective work with the lil info I had of them and finally found their obituary. And that felt awful too, but in time better. So the lesson I learned was that disappearing like I had planned was still an awful experience for those that care about you, awful enough my guilt woudln't allow it. Turns out I only needed someone else to fucking die for me to figure that out :D ! So I cancelled my plans feeling like an absolute guilt ridden shit and for the past two months I'm back to living for the sake of others, trying my best to recover again cos might aswell If I can't die. Now I eat fruit while sad.
That's the summary, yet again. Don't know your personal situation, but hope this answered your question and served you for whichever reason you asked it. Lots of hugs <3