If your fiance yelled at your kid, would you keep him around?

My fiance, a previous football coach for 28 years, yelled like a maniac because my 14 yr. old son didn't tell him he quit football. My son was scared to tell him because he thought he'd go ballistic, so he side-stepped questions about football and avoided the subjct as he was building up his courage to tell him. Four days ped, my fiance was suspicious from my boy's answers, so he found out that he wasn't playing football any more (by having his daughter ask some of the other football players) so he confronted him and hammered him by telling him he was a liar, deceptive and untrustworthy because he wasn't honest in his answers when he had asked about football.