It's certainly a plausible possibility. But it could also be as someone said above, tho -- more of a "14 year old being 14" than about "betrayal."
My S13, who I coach in baseball, and I fight like cats and dogs on the ballfield, and I take everything WAY too personally. OFF the field, we get along GREAT -- best buds. My wife always tells me, wisely, "Pup, he's only 13. Stop expecting him to think like a grown-up."
