I'm glad you're seeing the C! Hopefully that will be a good place to discuss this.
Yes, WH moved OW into our home in secret 3 weeks after I left. I found out from SD, who came to visit her dad and walked into a completely changed house and a woman she had never met before, and was told to keep it a secret from me. Then I found lots of FB posts where OW showed of a huge engagement ring and said they're getting M this year.
M 16 yrs, WH62, P54 3 adult blended kids EA 11/13, BD1 6/14 PA fall 14, BD2 2/15 Piecing 2015, BD3 12/15 Separated 4/16 WH moved OW in 5/16 Divorced 6/15/17