I Married the Son of My Father's Mortal Enemy

I married the son of my father's sworn enemy. On the day the imperial decree arrived, I thought my father would be devastated and angry, or even go find his sworn enemy and give him a piece of his mind... “Daughter, promise me you'll use every bit of your troublemaking talent. If you can't cause trouble badly enough to get yourself killed, then cause even more!” My father laughed uproariously. Me: ??? Dad, don't run! Let's talk about what exactly I've done to cause trouble.