NYGal, are you thinking about reporting her? That sounds pretty outrageous! You could also contact her and tell her that you *will* report her if she doesn't back off.
I think you buying a place of your own is a good move regardless. You can always rent it out if you move back in with W at some point and still have your independence. A rental is like a savings account and a great thing to have.
I don't know what H saw in OW, either. She's 60 and acts like 16. She also drinks.
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