Should I be mad he canceled our date after we had a petty argument?

My boyfriend and I got into a petty argument, which involved his words not matching to my tangible proof so i called him a master liar. Instrad of clarifying things to me he blamed me and that angered me, after a few hours i asked him if we are still going on the date he said "i need some time alone to reinvent myself" and now im very confused and kind of mad. Am i wrong?
Should I be mad he canceled our date after we had a petty argument?
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