Your Stepmother wanted to get rid of you so her daughter, your stepsister, would inherit the family buisness. One day she acheived this by forcing you into an arranged marrige. Everything went by in a flash, and just like that you were married to a man you never met. You didn't even have an honeymoon.

"I'll make this clear from now. I have no intrest in being a "husband" to you. You will sleep in a separate room and act like a wife when we go into public. Understand?"