I guess I am one fortunate guy, my wife loves to travel and while I get enough travel in as I can, it is often not as much as I want. So while on the last leg of every trip we talk about the next one. We have been to all but 6 of the National Parks so now the plans for every trip have to do with the final 6.
You have to understand we're newly weds, it's only been 53 years. A lot of trips for the DW, and a lot for us. Our last multi week trip was for her but she knew I wanted to go to Carlsbad Caverns, she had no desire but it was ok because it was on the way to Big Bend. Actually both were out of the way because our destination was Paducah KY for Quilt Week.
Some one on here uses the tag line, options, you've got to have options a great philosophy.
Try some trips now and maybe she'll make some new friends as you walk around the campgrounds in the evenings.