It's good that you are both aware that you need to start planning the UA time.

Look at this quote by Dr Harley from the Five Steps Workbook (pg 182):
A point I make repeatedly in both Love Busters and His Needs Her Needs is that romantic love cannot be created or sustained without time for undivided attention. You don't have to be a genius to discover that unless you schedule time to meet each other's emotional needs, it won't get done.

If either my H or myself said "we'll see" it wouldn't happen. We sit down with our schedules on Sun or Mon and we try to plan out the week with at least one date night. Then we line up our babysitter for our weekly date night.

Approach your W and respectfully request that you two start scheduling your UA time weekly, say on every Sunday night so that it can become a habit. Be upbeat and don't approach her when either of you is in a bad mood. Let us know what she thinks of doing this.

Ddays 2007 and 2011
Plan B 6/21/11
Divorced July 2012
2 kids
How to Plan B Correctly
Parallel Parenting in Plan B