Husband camped out in my car

My husband and I have been married six years. Today, like the last three days, he’s been in a really bad mood. He smokes marijuana vapes and ran out three days ago. He’s trying to quit because he’s looking into getting a new job so he hasn’t bought more. He got furloughed due to COVID and hasn’t worked in 3 months. If I’m being honest he’s very dependent on marijuana. He has OCD and what I think is bi polar disorder (he refuses to get formally evaluated) and smoking weed helps him and honestly makes him a nicer person.

Today, I asked him to fix my iPad screen that broke a couple of weeks ago when I dropped it. He’s a handy man so it wasn’t a hard task. He agreed but was clearly mad about it. Exhaling, rolling his eyes, telling me he’s sick of fixing my shit (this is literally the first thing of mine he’s fixed.) Because he was being so negative about it I told him to leave it and I would take it in to a place when everything opens up again. He started getting mad I said that, he yelled at me, I yelled back and he slammed a dremmel down on the floor 3ft from me really hard then yelled at the top of his lungs at me. In that moment I was stunned and all I said was “leave”, he then threw up his hands and walked to the door, opened it and said “so you want me to leave forever?” and because I was so stunned about what just happened I said “if that’s what you think” so he said ok, slammed the door and left. This was the straw that broke the camels back for me because about 6 months ago during a minor disagreement I closed the door to leave the room and he threw a remote at it which left a hole in the door. I forgave him for it because he was genuinely apologetic. When he slammed the dremmel down today I had PTSD and instantly needed him to go.

A few hours ago by and I’m worried sick about his safety since he left in such an upset mood and has bipolar and depression. I happened to find his car keys and wallet so I knew he couldnt have gone far so I was even more worried. I figured he walked to his friends house and kept calling his phone periodically but it was still off.

Eventually I had to go to work, I’m an essential worker so I couldn’t call out. I have a big 3 row seater SUV that we use for camping etc. I go to get in to my car still totally broken about the situation and find him asleep in the back of my car. When I open the door to get in he scored the crap out of me but without missing a beat he tells me to get the fuck away from him to close the door and go back in the house. I start crying and beg him to forgive me and apologize for yelling at him. He tells me he’s not sure he wants to be with me anymore and to go back in the house, he doesn’t want to see me, he hates me etc. I tell him I have to go to work and he tells me to uber, (his car is in the shop), so I do. So now I’m at work going out of my mind thinking my marriage is over. My husband would rather camp out all day in my SUV than be around me. What should I do here?