From the discussions we have had, and from her answers to my questions, a foundation is / would be
Foundation: "Two people meet and are so compatible that they fall madly, deeply in love, and that love is so strong that even when they fall on hard times, that love is the foundation that can carry them through and that they can build on to keep the marriage going."
In other words, she does not feel that we were ever compatible enough and deeply in love enough, and never can be, and therefore...
That's what I'm saying. She seems hung up on a fundamental misunderstanding - that love is what you feel - that butterfly in the stomach feeling. You, me and lots of people here know that's not the case.
I don't think you are going to be able to talk your way into convincing her she's wrong. But, you just might be able to show her by continuing the fight.
Could you turn her argument around a bit and mention (if coupled with your actions - which you have done so far) that the reason you are fighting for your M IS precisely b/c you love her and your family. B/c right now times are rough. That "love" you have (real love, not some teenager's fantasy of what it is) is what serves as your foundation to keep fighting. I suspect that is also HER foundation, but she interprets it as her desire to keep the family together.
Oh, the "compatible" thing I believe to be script. It's a non-specific word that can explain why she wants out without providing a real reason. It's NOT an explanation. AND, I heard it too.