Is he ignoring me because I called him bro?

We been dating consistently for 2 months. We had a night out and the next day I told him he “left his hat bro”. It’s just how I text sometimes and he said , “bro, wtf?” “Just throw the hat away bro, and I never heard from him again. Was he just using this as an excuse to leave? He refuses to respond to any of my text.

Is he ignoring me because I called him bro?
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