im so ashamed

so ashamed im on a working weekend he agreed to come along was normal for about 4 hours and then reverted to bastard mode. My contacts the family that invited us to a special wine tasting dinner that I was writing a piece on, gave us their family aparment, set up meetings with achef and a bed and breakfast( another family member) and tonight when we got back here to the bed and breakfast, he was raging at me because I stayed back at the resturant to pay thebill. while he went off to watch a football match . i joined him 20 mins later and told him that at the restyrant they had made a mistake when entering the amount on the card and had put through 7.50 instead of 37.50. they were very nice people and after trying on the card again without sucess , they completely trusted me and agreed I could go get the money and return later. I walked across town to the bar he was watching football in . explained tge situation quietly during the break and askedhimfor the 30 cash to walk back and pay them as Ihad promise. He snarled atmeno imnot giving you the money it was their stupid mistake! but I gave my word i said! well thats yourproblem Ineed the money incase i buy another drink here. u have enough for another drink. eventually after I badgeredhim for an hour hehanded over twenty swearing at me that I was an idiot and to F off! i walked out stunned and embarrassed and trudged across town again in the rain to pay the resturant. then wondered around in the cold rain trying to remember where the car was parked in this strange town. i had no money to take a taxi back to the b and b. So i just keep walking around in the freezing rain. my phone was dead and I told him so beforehand.
after two hours he comes strolling back to the car where i was standing freezi g wet and tired and pretends nothing had happened. Silent treatment all the way home to the bed and breakfast. When we got out. I saiid I was disappointed at how he had treated these people who were so nice and also me He starts screaming and raging with obsenities. I said please dont, people here are trying to sleep. you are disturbing the peace and they may throw us out or call the police. At which point he startex shouting louder saying I can shout if I want. im paying to be here!! Im not a guest! arent u embarrsssed? I asked . I am! No he screamed I can do and say what I want, u caused the argument. at this point to shut him up, as the whole place had heard his abuse at midnight, I decided to go into the the bathroom he shouted until he saw i was absent then climbed into bed and imeadiately started snoring! im here deeply ashamed i can sleep, ive done nothing wrong. I cant face these lovely people tomoorow. I want to cancel the lunch and interview that was set up on my behalf. I cant take any more embarrassment. he never gets embarrassed he says.
what do I do? im so angry and ashamed. too ashamed to tell my family ive chosen a narc to marry, to ashamed to admit the failure of my life, i dont want to worry my family and my adult kids, they think im set for life and have such a caring man. i feel like a fool, cant sleep and the beast is snoring.
Yet another work contact sabotaged! im so sad and ashamed.
he hides behind my normalcy and cashes in on all my contacts.
My God what have I done?