She should buy a small RV and travel with you for a while. She can meet people at every park. Every park we have stayed for sure has lots of single men. Let her get used to traveling and meeting people then maybe she will have met some along the way or she will feel comfortable traveling alone and meet people along the way.
Having her own RV along side of yours, will give her her own privacy and somewhere to entertain the gentlemen folk she meets along the way. With her own RV she should not feel like the odd man out