Hi Sunnyvale

Welcome to our bpdfamily.
(I like calling this site family cs. we all support each other here, which is what healthy families do with each other. Hence this site is a kind of family for some of us.)
First I want to say I am sorry you are going through this. It sounds like you are abroad, which is already a change that brings stress of its own, although hopefully there is some adventure there too.
The issue now is that she wants this intense relationship with me, messages me every day, across all social media and email. If I don’t reply within a day she accuses me of ignoring her for weeks and says I’m selfish.
As a pwBPD, it could also be that she's suffering anxiety and a sense of abandonment with you being far away. By texting you every day, maybe she's having her own high emotional needs met. My mom does this too, and she lives in the same town as me. I'm an only child. When my mom was driving more (she doesn't drive as much in the winter because she's afraid), she was showing up at our house at the most inopportune times unannounced (on top of all the unrelated daily texting), and completely unaware of high maintenance and abnormal this is for a mother. It's absolutely suffocating. I get what you are going through. If I tried saying anything gently to mom, she would fly off the handle like you described your mom does, and say a bunch of crazy irrational mean things.
It's not quite that bad for me right now for a few reasons. But it probably will get bad again (later rather than sooner is my best hope).
Your mom's texting every day could also maybe be an extinction burst since you are now abroad?
I’ve had to mute my notifications
Good for you
If I don’t reply within a day she accuses me of ignoring her for weeks and says I’m selfish.
Personally I would ignore these comments from your mom, as your replying to them is just adding fuel to the fire, and keeps her returning with even more damaging comments. And so it goes, and the relationship continues to be damaging.
The best reply to these comments from her is silence. It sends a strong message. She may get worse for a while (extinction burst), but then hopefully it subsides. That will work with email, but Facebook and social media are another ball of wax since they have a wider public audience that your mom
could possibly use as a platform (worst case scenario). Has that ever happened?
On the other hand, a better approach if you want to try and maintain a relationship with your mom, is: if she sends you a message that
isn't negative and harmful, I would reward that behavior with a reply.
If that happens enough times, she will figure it out. It's straight behavioral theory - kind of like Pavlov and his dogs. Reward the positive behavior. Ignore the bad behavior.
I even screenshotted the dates of when we spoke to say we spoke everyday not weeks?
This is called JADEing. Your are justifing and explaining. That doesn't work with a BPD, which is why you got the following reply:
‘oh you have time to do that but not message me back’
This is an example of the distorted thinking of a BPD. You can't rationalize, explain, defend, argue or justify like you do with a BP, because their thinking is distorted. It's part of the disease. So these communication skills that work with healthy people (JADE), only serve to make a bad situation even worse with a BP.
Instead, try validation, validating questions, SET, etc.
https://bpdfamily.com/parenting/04.htmhttps://bpdfamily.com/content/communication-skills-dont-be-invalidatinghttps://bpdfamily.com/message_board/index.php?topic=273415.0BPD's have trouble with emotional regulation. If your mom is behaving like this right now, there's a good chance she's dysregulated. Using SET and validation skills, and NOT JADEing, won't "fix" your mom, but it can help you navigate a relationship with her so that there are hopefully fewer crises, or less intense crises.
The other thing you can do, is just let her be, and eventually she will self-sooth, or get over it (until the next time she dysregulates).
The main thing is to keep yourself emotionally safe. Being abroad helps keep a physical distance. Until she self-soothes, it sounds like you could use some emotional distance as well.
Take care.
