Ex boyfriend

So iv been dating this guy for 6 months. We recently broke up because i felt depressed and the wag he treats me sometimes is a little questionable. Anyways yesterday we went to burger king. I was ina really good mood, and i got to the second window and hes like “ make sure you ask for sweet and sour sauce. Im like okay i ask but as im asking the guy at the window i burst out laughing bc i didnt say sour right. He laughed too bc IT WAS FUNNY. Meanwhile my ex isnt thinking its funny. So dude at the window is like what? Im like can i get a few packets of wt and sour please? Sorry lol” and he laughs and goes okay. After that he hands me my drink and he was messing around and acts like the drink is about to fall off my hand but he was just playing so im like lol good one . ( idk i wasnt really thinking anything of it. Just a person being goofy) then when we drive away hes all mad bc i “disrespected him by fliring with him infront of him” like??? I thought you wanted to break up . And even then, i wasnt even flirting with him.

He thinks that bc i laughed woth him i was florting. I was like you are tripiinnngggg. So he hasent talked to me all night and today. I honestly want to know if im in the wrong or hes just being iverly jealous??