Ok, here's what I'm getting. I think there just might be some internal 'war' within your W as to what defines a man of quality. Ceratinly, she's used to FIL, as you say black and white, stuck in wrought and probably has everything so down to a routine up to and inlcuding what time he picks his nose.
You on the other hand, and as proven with the flowers, provide as you note, spontenatey and perhaps a fly by the seat of your pants type life that she thirsts for. BUT, her rearing tells her that is wrong. It tells her there's no security in living life as it comes. And that to me is why she went back, that security.
This whole story of yours couldn't be more iconic to Romeo and Juliet if I tried.
Her headaches are CLEARLY linked to a psychological issue stemming from the D of her parents. And I would certainly think that there's never going to be a medical cure no matter how much daddy warbucks fronts the bill.
As far as 'confronting' him. It was not my intent to suggest an all out "attack". Merely, as I feel and you confessed, you kind of just sat there and took it and not stand up for your beliefs. Take the case in point of saving your M. Will you let him stand in the way? I think not.
Me 35/XW 33 S13 & S12 M: 10/17/98 OM & S: 07/08 D final 06/09/09 12/03/09 - 06/13/10 "Piercing" 06/13/10: Engaged to Re-marry 10/17/10 06/25/10: Expecting baby #3 2/14/11