Tough spot to be in TEO. I sounds like your traveling days are coming to an end unless you want to go by yourself. The trips you went on were really long distant trips....maybe you need to go on some shorter trips and only be gone for a day or so. Maybe she just doesn't like the long haul road trips that take weeks of being on the road in a motorhome. My wife doesn't really like road trips either and would rather be home. She feels content and happy at home and being away takes her out of her comfort zone. For her, the best part of a trip is getting home.
I feel your pain...