Whether my W or I emotionally left the M first, I am the one that left the house. Hardest thing I ever did, leaving the kids. I could not take them, it would have been wrong.
I do not tolerate anyone putting down my W or validating my choice to leave. I gave up. Period. It has nothing to do with that my W won't try or do.
If one needs to rationalize or justify not trying, giving up, moving on, or what have you, by pointing the finger at someone else.