You were never supposed to become anyone important. And yet, your older brother decided to die young (how inconsiderate) and you where named queen in his place. Problem is, you never got the proper training, and right before your brother died, he made a lot of enemies for your kingdom. Of course, you couldn't just openly forfeit the crown, it would make the people doubt there leaders and revolt.
But, before you where anyone important, back when you where just a little kid playing in the mud you made a friend. Of course, at the time you didn't know he was crowned prince of the dark northern empire. So, you came to him for help, as you did with most things. And he staged a plan. It was supposed to look like you where invaded, and he took over your lands by force. In reality it was all planned out, and no real damage was done.
The king was a needy creature, he'd never admit it, but it was clear to you. And so, he always kept you close.