I'm so sorry, Cardinal. I am sure being there trapped with him without a buffer is really hard. I have kids so they are my buffer. My H is actually being a good roommate. His opposite is turning into a hermit. He used to be the social butterfly so the way he's being crazy is really to withdraw from everyone, except our kids. I am grateful for that.
Regarding the headphones/earplugs... I agree with DnJ. If this was a roommate situation, you would have to kindly ask them to create ground rules. It complicates things because of all your emotional enmeshment with him. Just take deep breaths before you have the talk. And self soothe, whatever that means for you... when you feel stressed, afraid or worried.
When I get like that, I do what Louis Hay says. I do my mirror work. I tell myself, "I love you. You are ok. You will get through this. You are enough." Then I sometimes rub my face like my spouse used to or literally hug myself. I am also blessed that I can ask my kids for a hug or to hold hands. Even them as teenagers understand with all we are going through this kind of affection is needed and soothing.
Be kind to yourself. Be patient with your progress. You are doing great. Blessings!
W (me): 50 H: 46 M: 21 T: 25 S:17 D:15 BD 11/2019
Fate whispers to the warrior, "You can not withstand the storm" And the warrior whispers back, "I am the storm." ~Unknown