Hi T. Sorry you are here but you will "meet" some amazing people who will be along to offer somoe help.
I want you to know that only you can really determine if your w is in a midlife crisis as you know her best. And if she is, this is going to be a marathon, not a sprint. So if you want to save your marriage, you need to decide if you're up for the challenge. You might want to go and check the midlife crisis forum on here.
What she has been telling you is part of the script that most everyone hears. As is the rewriting of your history together.
The most important thing for you to do is to realize you can only control you.
So, it is a good thing to look at some of the things she has said about why she was unhappy. Determine which ones have merit and validity and throw the rest away. Those things that you agree with are what you should be starting to change. The thing of that is, that the changes have to be something that you want to do for you. Because if you do them for any other reason, they wont stick and she will see right through them.
Dbing is really a way to become the person you were meant to be - the very best you. And sometimes, it saves marriages.
It is important that you let her walk her journey. Your job is to get out of the way and walk yours.
Give her space. Validate when you can. Take care of yourself and your children and also very important - GAL!
The more information you can give us, the better we can offer some suggestions.
It might take a little while for you to get responses. But continue to post and try to post to others.
If you want to ride this out, strap yourself in, it is a rollercoaster.
But if you do the work, you can be sure that your life will be forever changed.