I agree with Motor31...a resort may not be the place to find friends. You say that you are retired...so what's keeping you in Florida? That motorhome of yours has wheels...take advantage of them and get out there and do some traveling!
Join the
Escapees, if you have not already, and take advantage of their Chapter meetings and Escapades. Volunteer to do something at one of these get togethers...there's probably no better way of meeting and getting to know people. Join one or more of their numerous BOFs (Birds of A Feather) and attend their get togethers and, as above, volunteer to help out.
Since you have a motorhome, join FMCA, and attend some of their functions around the country. As others have said, seek out an owners group for your brand of RV and go to their get togethers.
If there's something that's keeping you in Florida so that you cannot do much traveling, then pitch in and volunteer at the RV resort...help out with the potlucks, offer to setup to take down chairs and tables for the games, the potlucks, meetings, whatever. In short, get involved.