I can see per your comment that she feels like she can come and go as she pleases, but you must schedule appointments to come by her place. I'd like to see what others think, but I think it's time to set some boundries. Maybe tell her to please call before coming by.
Ideas for dates? I'd say something totally different from what you've done before or something unexpected. I have a date coming up this week (not with XW) and I'm going to her house to cook together. Just have a laid back, positive and happy attitiude. Don't bring up anything about the R. Act as if you've had an epiphany and everything is great in your life...you've found yourself. It will really throw her off and keep her guessing....try not you get manipulted into R conversations.
You're on the date to have fun, so have fun!
Formerly SGfan M:38 W:33 M:8 yrs T:10 yrs Bomb: Dec '08 Separated: 4/18/09 Divorce: 8/28/09 XW Affair began: April 08