What types of things did you two do while you were falling in love? Try to ask her to do these things with you.

I know you mentioned the walk was enjoyable, maybe you could start there, ask her if she would be willing to have a sitter come to the house 1-2 times a week for an hour or so so that the two of you can go on a long walk. Maybe this will help to ease her into using a babysitter... (Make sure this UA time is very enjoyable for her if it happens!)

I am going to recommend that if in a few weeks time if she is still refusing to schedule the UA time with you & refusing to use babysitters that you email back the radio show. (Don't threaten her with this or anything along those lines) I believe Dr Harley's advice for you was based on your comments that she was willing to spend UA time with you but finding good babysitters was an issue.