I thought EQ mentioned Snow did something while the King was still alive. I'm beginning to think she married the King to exact revenge on them both rather than her being just a neglected step-mother whose new husband is still obsessed with his wife. Given who the EQ is all the hurt feelings is just an act and all the crying is because she is unloved by her husband is just an act. The King in talking to genie tells him that EQ knows he could never love her like he loved his first wife. If EQ knows this she shouldn't have married him. I think the real reason is prior to her marriage to the King. Plus she over the episodes have talked about how she can't kill Snow outright because the people loved her. I'm sure it was the same with the King. She needed a way to kill him without her being the "EVIL QUEEN" in the eyes of the people.