Another great group is womenrv.com - not to be confused with the paid membership group rvingwomen.org.
The women of womenrv.com are not required to be single (for whatever reason), but the vast majority is single. The only requirement to join the group is that you are a woman and already have, or want to have, any type of RV.
I have been hauling my pooch and little travel trailer around by myself for 3 1/2 years now. Never had a moment of fear or loneliness.
Why, here's last year's Thansgiving feast and the pooch did not get a single bite of it!! :) Cooked outdoors a dutch oven in some really, really cold weather. Reservations are already made for this year's Turkey Extravaganza...
Go for it - you'll most likely have a ball!!