Sentence:  I can see Mickie getting hot, I'm about to grab his arm, hold him back, say, Whoa, whoa, Mick, not here, it ain't worth it what happened inside just now. But I don't need to because Mickie <WSD>loses</WSD> his anger, starts smiling at ponytail, then melodramatically starts looking around at the men and women on the street going in and out of the courthouse. 
Meaning of the word marked with <WSD> tags:  To cease exhibiting; to overcome (a behavior or emotion).