Fighting with my husband of 8 years

My husband and I both have bad tempers.  Today I woke to find him gone, and I was worried.  I texted him asking where he went and he replied fuck it I'm on the way home.  So that sparked my curiosity enough to check his location through findmyiphone.  He was in a neighborhood that I dont know well about 40 minutes away from home.  I immediately tried to face time him to which he didn't answer then i called, texted, and left a voicemail.  He turned his phone off.  When he got home, i kept my distance and started doing some organizing to keep busy... When i came down stairs i fell down the last few steps and he showed no reaction, just stayed sitting on the couch.  I tried to stay calm and started cleaning up the downstairs and ended up breaking stuff...he told me to calm down and i flipped out.  I kicked a hole in the wall and he reacted with smashing a pie i just bought...it got everywhere, he got the vacuum out and went passed me with it, hitting my leg as hard as he could with the vacuum.  It hurt and i cried and he said he is done with me.  I left and picked our 11 year old up from the bus stop and brought him out to eat.  I told him we needed to give his dad a minute to clean up because mom lost her temper and broke some stuff and dad is cleaning it up for me.  When we got home he had already halfway fixed the hole in the wall and was sitting on the couch making comments, telling my son he could do anything he wants and just in general being disrespectful towards me.  He turned on walking dead which gives me nightmares because i have a serious fear of zombies, which i have had for about 20 years. I said really? And his response was to turn it up on full blast, so i left.  Now, i am just sitting in a parking lot considering my next move.  I have no where to go, he is my entire support system, i dont have friends or a job.  I need a job but i am disabled and after countless visits to the doctor/va hospital, i have not been diagnosed.  I recently had a job for about two weeks, i had to quit because my pain was just getting worse and it just paid enough for basically my gas to get there.  I want to be single and free, but it seems impossible.  Where do i start? Do i beg him to forgive me for flipping out over stupid shit, or do i find a family member willing to help?  I would hate to burden my parents or siblings, i have no one else to confide in.  It seems my only option is to suck it up and play nice until i get my disability or find someone that hires disabled vets. What should i do?