Hey man, don't have much advice for you here as I'm the "responsible" and unfun one, and like you have had to live much of my life flying by the seat of my pants and turning on a dime. ( How's that for a cliche'd sentence! Ha!)
Tell you truthfully, your W sounds like an adrenaline addict.
I was one once, and it showed in my behaviour in my being chronically late.
Have you noticed any other behaviours that could cross the line in to addiction too? Addiction being defined as anything she does to self soothe and that negatively impact her life and relationships.
Does she also use a lot of caffiene, always has to be in physical motion of some sort ( foot tapping, pen clicking, wriggling, twirling hair etc.?)
BITS Me-51, WAS-52 Kids 2 M-26yrs, H.left 2009, 2 more Bomb drops, Reconnection spring 2013 Change is inevitable, personal growth is a choice. Love is a action and choice you make, every day.