So, if you want to date, then date (I recall you are not M'd). You don't have to do that around your D, certainly not at first. I would be careful about bringing in a new woman around your D until you feel pretty solid about the R.
So, if your X doesn't want to do things with your D, then take the initiative and do that yourself. Your D will love the time with you. And you will love being with her.
If X wants to be selfish, then there's your chance for more time with D. Make it happen.
