Hi psyche, and welcome! I had to chuckle, reading your headliner question. I've long said that alone, I'm totally fine - it's only when around people that I have issues. But, that turns out to be exactly the issue, with my BPD. Alone, I know what to expect, and how to manage. Throw others into the mix, and things change, and....well....here I am. So yeah, I can see where it's totally possible for you to have found a good level of how to deal with friends, etc., but still be thrown by a closer relationship. Myself, I am having a struggle with employers, more than anyone else in my life, right now. But that is "for right now". Over time, it's been different. But hey - if you've figured out how to draw boundaries, and communicate, with friends - you CAN do the same in closer relationships too.