I pushed a boy out a tower window, crippled him for life for Cersei. I strangled my cousin with my own hands just to get back to Cersei. I would have murdered every man, woman and child in Riverrun for Cersei.
Threaten? As in "I'm going to open your lord from balls to brains and see what Starks are made of"?
If you were to marry Cersei, she's murder you in your sleep.
My father always said I was a slow learner