The Detroit Lions’ marriage with Matt Patricia ended the way most team/coach unions do in the NFL — in divorce. But unlike most long-term relationships, there are no good times worth remembering. The pairing was toxic almost from the start through its bitter finish, which probably came a year later than it should have. There’s a football game to be played Sunday, between the Lions and New England Patriots. And the Lions have more to worry about with their present than their past, given the team’s disappointing 1-3 start to the season. Still, it will be impossible to ignore the elephant in the …