She's trying to get things back where they were still... Living at home with you STILL... so she can USE your money, LIE to you, and have SEX chats in private...

You have a choice to make

a. Let her live with you in an open marriage
b. Let her live elsewhere in an open marriage

You think she's gonig to be HONEST with you THIS time if you took her back? If you said

"OK if you agree to respect me and be fully honest with me I will allow you to live here with me"

Can you TRUST her on that?