I'm having problems with my best friend, who is also my favourite person. If she's not paying me attention all the time, I feel like she doesn't care and is annoyed with me. I feel jealous over her interactions with other friends. I have this with other people to an extent but it's worse with her.
Recent examples (my friend is 'A'):
We have a mutual friend who has been physically ill a lot this year and posted a photo of herself in hospital on Facebook. 'A' commented 'Love You'. Soon afterwards I shared a post about how 'mental illness is part of my life' and she didn't comment on or even like it. Also, when I first told her I loved her she said no friend had ever said that to her before and she had never said it before either. Now she's telling this other friend she loves her. Every time I think about this situation I feel angry.
I had a mental health assessment this morning. 'A' hasn't texted me all day. I can see it's probably because I said yesterday I would ring her tomorrow to let her know how it went. But I was expecting her to text today just to say she hope it went well. And/or text me before to wish me luck. Because she did neither, I feel she doesn't care. Yet I know when I talk to her tomorrow she'll be caring and i'lol feel like she's the best person in the world.
I know this kind of thing is common in BPD, but how do I overcome it? Part of me can see the logical side and I feel like some of what I have written above is childish, but the thoughts that she's mad at me or doesn't care etc seem so real when things like this happen.