I agree- esp considering the fact that she believes the M failed her. Rather than finding happiness w/in her self she relied on the M for that. I was always happy w/ me but felt a disconnect w/ W b/c of her innate unhappiness.
She understands these things but is still looking outside herslf for happiness.
I never once thought the M should be discarded- not until all other avenues were explored.
As I mentioned her mom was widowed and remarried for a month then called her daughter and son when her H was away and had them pack her up.
Now MIL is 60, going to bars and restaraunts at night, living a singles life- this is the family dynamic- no dinners w/ mom and dad- seeing that a home/family life is perhaps a tad boring compared to bars and clubs on a weeknight- but far more rewarding.
I will take your suggestion and remove myself from their FB's