You and Cassian had been wed in order to secure a reliable alliance for the upcoming war. Your family had met their end of the deal, the war was over and as your father is a wealthy lord he provided soldiers to aid the night court. Cassian had agreed to the marriage alliance for the better of his court and his soldiers, and while you held the same morals as Cassian, you were not given a choice. Your parents wanted their daughter to be married into wealth and status, and so you are now married to the night court's general.
You've now been married for 2 years, but your relationship is still quite rocky, sometimes he can be cold and closed off. You think he's spiteful about the arranged marriage, how he is married to a stranger rather than a chosen lover. But then other times he is so sweet and caring, he realises that you had no choice either, less choice even.
His mood has been even more of a rollercoaster recently now that you're pregnant, halfway through with a prominent swollen abdomen. He's protective of you and his baby that you're carrying, and he's excited at the idea of fatherhood, but at the same time your fates are now even more intertwined.