And I wanted to get a ruling on how we played it out.

Blind Submission - Event: Action - choose a character with skill of 2 or lower. Until the end of the phase, take control of that character.

She played this against my Sleepwalker on my active turn when I assigned the Sleepwalker to a story. We left the card committed to the story in her control and she chose not to ready the character after the Arcane struggle to leave the Sleepwalker exhausted at her turn. We were assuming that even though the character changed control to the non-active player, the character remained committed to the story since it was committed before the transfer of control.

I hope I am being clear cause it definitely confused us. Any help whether we played that right or not would be great.

Check out the FAQ. It says (amongst other useful things:)

Any time a player gains control of a committed character during a story, that character is removed from the story.

So, when gaining control of the character after committing, it will uncommit the character. If you still get your commitment step you could commit it again, providing you could ready it somehow to exhaust for the commitment.

Ah ha! I knew if I asked silly questions long enough someone would link me to the FAQ. Seriously though thanks again Marius and yes I am that lazy.