I would be careful of making such broad and sweeping sterotypical and misinformed statements about gay women. Be careful. I could say the same thing for straight sites who actually encourage full-on affairs and encite them to leave their spouses & families. No difference there.
On both sides of same coin, there are actually people out there who think having affairs and leaving their spouses is perfectly okay. Not!
Jay, keep going and work on yourself. I'd suggest that you and W discuss the option of her moving to the guest room. You can put down a boundary and inform her that she cannot continue disrespecting you by perusing those sites in the house.