Wounded

"I think my dad was wounded emotionally by his war experiences, " I continued. "He was so young. In fact, the youngest Marine aviator in WW II. He, like your dad, could become violent. And he drank heavily on and off." 
 
Andrew and I let these new coincidences rest between us. I pushed my drink cup around in a circle. Andrew looked out the window. 
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What was I doing pushing my drink cup around?