@Chetan
Now I can Understand something, why you say she'll start developing Relation with you...Buddy Dont get Emotional. You are Matured Enough to Understand.
She has Already Jailed you (498a) in the past, Means she can do it too in future. If you will take EVEN on Mutual Understanding, She can claim Residency Under D.V Act, as It Recognise Live-in Relationships.
Moreover if God Forbids Kids Born out of that She will more Blackmail you. and One single Complaint of her again will book you for Adultry (IPC 497), She will walk away with Kids + Money + D.V (Residency Rights of your home), and She may restrain you from Enter of your own House + Future Spouse of yours might be Equally in Trouble.
So Dont try to Put 2 Legs in 2 Boats,
Hope Above Explaintation is Enough to open your Eyes, and THINK Practically & Logically.
STAY OUT OF HER & THIS MESS, and Get Restarin Order as Suggested by Amit.