Relationship issues

So first of all I hope everyone is ok. I have lived with my partner for 7 years and we have 2 girls together and just recently married. He has never been diagnose with autism although we have tried to get him assessed as we are sure he is on the spectrum.

Since the beginning of lockdown last year his condition has considerably deteriorated. He is a really clever and hardworking man but home life is very difficult to the point where I find it hard to talk to him about anything without being afraid of his reaction. He has been on citalopram which he decided to stop because he did not belief it was helping him. He has since then became a lot harder to live with as he gets mad and angry about anything.

I love him but I just can't seem to help him anymore. I do not believe that I should just accept everything he does excusing him for being autistic and sometimes I point out that he is doing something he shouldn't. However, because my feelings are illogical he will just shout at me and become quite scary.

What do you suggest I could do instead as I do love him and I feel for him and how awful all of the current situation must be for him.

Thank you.