This is a really tough one. My personal inclination would be to treat her as just another woman you date. I KNOW this can be very hard given the history. However, I think it is very important. You want to be there but she should know she is not the only option you have. Then, I would let time do its work.
I pray you find love and peace.
RMG
"The bad things in life open your eyes to the good things you weren't paying attention to before." from "Good Will Hunting"