If the love stuff continues its goneward creep, it's certainly possible for *You* to initiate something of an R talk with Mrs. GIMA along the lines of "I don't like how I'm feeling lately. I think some X and Y might be beneficial for me."
And you can always slip her your copy of LL.
I have been having this exact thought recently - "Is it forbidden to initiate an R discussion to tell someone you are starting to walk away yourself"
We all say that we wish our WAS's had said something earlier when it could still have been fixed - well - what is it we wish they had said?
Me 42, W 39, S8, S6, S2 M 11y, A & ILYBNILWY 11/08 Walking away from a bad situation.