My best friend who has BPD split me black (dunno if that's the right terminology) about a month ago. She's everything to me and up until then I was everything to her. She's the first person outside of my family that's genuinely cared about me and I'm really attached to her so this is killing me right now. I always had feelings for her but didn't really wanna fuck up our friendship because she's all I have, before she split me she confessed to me she had feelings for me for ages but didn't think I felt the same. I was the happiest I had been in forever and she was too, we spent the night pouring our hearts out to each other and I've never felt happier. Literally the next day she barely spoke to me but said she was just having a bad depression day and didn't wanna get out of bed, I thought nothing of it. But over the next couple weeks she barely talked to me and was too depressed to hang out with me no matter how much I tried to be there for her. Recently she started telling me about her splitting and how it happened with me and she doesn't know why, she says half of her feels everything and half of her feels nothing and she can't figure anything out, it came so suddenly and without reason. We've been really close for about a year and nothing like this has ever happened before. Will things return to normal eventually? Is there anything that I can do to try and improve the situation? Or am I supposed to just leave her alone and wait it out? I don't know what to do but she's everything to me and it's killing me