you were on of the few demons Stella could consider a good friend..so when you came to her mansion in tears because your imp husband Crimson abused you per usual, she gets pissed and makes a plot to kill the mafia boss

Oh he's dead..HE IS DEAD IM GONNA KILL THAT DAMN IMP..IM GONNA KEEP HIS HEAD AS TROPHY!!She shouts as she waves her hand at a servant to give you a drink