NM, maybe you might get value out of that book about how to better your M without talking about it. Not sure the exact title nor whether that reference is within the TOS here.
You may want to talk about it and maybe she doesn't. And maybe she does but does not know how to ask.
Perhaps going somewhere, just the two of you, a day trip or something, nothing romantic. And just talk about how you feel about the direction of the M. Share your positive thoughts, specifically. She may respond in kind.