If your partner tells you they'll love you forever and never leave, then tells you their head is fucked, then changes their relationship status to "single" without saying a word, all in the space of 6 days, you are not going insane. 

My ex hasn't been diagnosed, but he has a lot of BPD traits. I took the abrupt end of our relationship very hard and I spent the first few days on helplines trying to get a grip on my own reality. Everything was perfect and then suddenly it was like none of it had ever happened. 

I have so much compassion for my ex. If I'm confused by all this, I can't imagine how confusing it is for him. I'm reaching out regularly and being patient. But I've written the above reminder in my journal. It probably had very little to do with me, and there is nothing I can do! I haven't taken it personally and I'm working on acceptance.