It begins with unresolved resentment that she's tried to push down and go on with her life, but it's still there in her heart. She may carry this unresolved resentment for years, and the H may have no idea. Since her sexual desire is tied to her level of respect for her H, sexual intimacy flies out the window pretty fast. Many couples have a SSM for years, and the H thinks she simply has a low drive.........no, she doesn't respect him, and that's the problem in the bedroom. Eventually, the loss of respect and unresolved resentment will breed and other negative attitudes are born. Selfishness becomes a big proponent, suggesting she deserves better, or this is her time to do what she wants, etc. The little signs of disrespect come more to the surface in forms of rebellion. Eventually the little signs grow into all out rebellion. She rebels against her H, the marriage.
"What is best for my kids is best for me" Amor Fati Link to quotes: https://www.divorcebusting.com/forums/ubbthreads.php?ubb=showflat&Number=2879712