I agree with Vapo on this.
Your wife is the one that wants out.
DO NOT MOVE OUT.
You will give up all kinds of things by moving out.

What she is feeding you is not true. She's hiding something, you need to figure it out.

Me-LBH, 48
Spouse-WW, 48
Married for 19 years
Son, 12
BD #1 - November 1998 (EA 7 months after wedding)
BD #2 - November 2015 (same XBF EA)
WW filed D February 2016
WW moved out April 2016