SEATTLE — Maybe it would be different if Cooper Kupp had even one vindictive bone in his body. Maybe then the Seattle Seahawks wide receiver would lean into the scorned lover angle of Sunday’s NFC Championship game matchup between his Seahawks and former flame, the Rams. The same Rams for whom Kupp spilled blood and sacrificed body parts for while coming up with 634 catches for 7,776 yards and 57 touchdowns in seven illustrious seasons. Only to get kicked to the curb last March in a cost-