Hey guys, this is my first post here, but in need of some advice for my boyfriend with BPD. We’ve been together for a year now and honestly it’s mostly very lovely. But occasionally it feels like the illness just swallows him up, like it has the past four days. It all started with him not placing in a poetry comp and since then he’s very convinced that everything that happens is meant to tell him how worthless he is. He cut his finger at work and the reaction was closer to someone who’d been fired or something. Made comments about how he ‘should just let it bleed out’ and make everyone happier. I don’t know what to do, everything I say he turns it around and makes it bad. I try giving love and affirmation and he just says I don’t mean it. I’ll say something like, I’ve never loved anyone like you because you’re incredible, and he’ll take that as ‘ive loved others before and I will again.’ 
Or ill leave it and try and tell him how the problems really arnt that bad in the grand scheme of things and I get ‘that’s why I can never tell you things, you don’t care’. 
I just don’t know what to do or how to deal with this anymore. I feel so lost. I want to just give him space for a few days till he calms down but I know that won’t help. Any advice is super appreciated, thanks.