Long term relationship with Asperger partner advice

Hi all, I’m a NT woman in a long term partnership with my boyfriend who has recently been diagnosed with Aspergers. His diagnosis was a relief as we had a lot of issues in our relationship that caused me to end it a couple of times but we mended fences and got back together. His diagnosis caused me to be able to better understand his lack of empathy and difficulty in communicating. I also suffer from generalised anxiety disorder which meant that I was also over analysing a lot and causing myself a lot of stress over things that his diagnosis helped to explain.

Anyway, recently my partner has started suffering from depression. He is seeking professional help but over the holidays his therapist has understandably closed. He is struggling at the moment and has said some pretty hurtful things to me which I’m trying to understand is all part of his lack of empathy but with my anxiety as well I’m finding it a bit tough. 
does anyone have any advice on ways in which I can better support him through this? 
Thank you in advance.