Sandi, what is it that turns a previously good woman's heart that way? Based on my own sitch, I would be tempted to say neglect or the like. Except that I've seen accounts of several cases on here where, supposedly, everything in the marriage was fine, and you read elsewhere about wives going wayward Wyland marriages that to all outward appearances are just fine.
H53/W51, R-ing 4/'18
"Do not arouse or awaken love until it so desires"-Sg.of Sg 2:7
"So oftentimes it happens,that we live our lives in chains, & we never even know we have the key"-Eagles III 1:3