Picking fight??? how to handle???

I've sent messages re: hubby picking fights before vaca...well, we're actually away right now on vaca..... and he's angry. AGAIN On the ride down (3 hours down)..he complained that I wanted to stop for food at the agreed upon time (our son was asleep)...I thought we could either wake him or I could run in and get food for all of us...he said: no...he and his son would get food later on...I asked if okay if I ran in and got somethng for myself...he said okay, but when I came back...he was clearly MAD.. He was driving my car and asked about my sunroof cover and when I said I didn't know where it was/how to use it...he started COMPLAINING AGAIN....THAT I'VE HAD THIS CAR FOR 3 YEARS...AND HOW DO I NOT KNOW? AND WHAT ELSE DON'T I KNOW ABOUT MY CAR??/ Had a peaceful few days...then he complained again this morning when I brought home a chocolate croissant for my son/me and hiim and he was mad when we had donuts here....then he got mad that my son wasn't eating??? and asked WHY I continued to put FOOD on his tray that he wasn't EATING? and said in a MEAN WAY....SHOULDN'T YOU KNOW THIS BY NOW??? YOU'VE HAD OUR SON FOR 2 YEARS??? AND YOU FEED HIM/IE, PUT FOOD ON HIS TRAY THAT HE WON'T EAT...WHEN YOU SHOULD ONLY PUT A LITTLE AT A TIME??? and he went into the bathroom and slammed the door. I was done. He was looking to pick a fight....I told him when he got out that I was "done" with the condescending/disrespectful tone...that I needed a KINDER tone...and that THIS ISN'T WHAT I WANT FOR OUR MARRIAGE. he shrugged his shoulders. he is not talking to me. we go back to our house tomorrow. we have one car. I can't leave I called my therapist and told her everything...am seeing her on thu...she said I did the RIGHT thing by standing up for myself.... I'd rather there be tension on a vacation than allow himself to use me as an emotional punching bag. Any advice?

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