I understand your remorse. I have those too. Such a waste. I am in love with my W. She is no more. I am not in love with my STBXW. She might be forevermore.
On the dating side, do what you are doing and enjoy the time. The best thing you are doing is being honest with her and yourself as well.
They said it was a long journey.
Take care
Irish
M51 XW43 (38 at bd) BD1 MAY 30 2015 BD2 JUNE 25 2015 by text moved out Aug 2 2015 left both Daughters 13 and 15 (now 18-20) Her divorce Final July 26 2016 Last time she saw her kids Aug 2 2015