At least now she (Tina Louise) doesn’t have to worry about any more pesky reunions. 
Yes, I’m a bad person.
I met Dawn Wells on one occasion back about 1990. One of her cousins was a co-worker of my wife and Dawn attended my wife’s firm’s swanky Christmas party in Vegas. She was a pleasant cordial person over our brief chat about many things (but not GI; I’ve got some social graces).
I got the impression celebrity had become more a burden than a privilege many years before. She was still readily recognizable and darn good looking for someone in her early 50s while I was in my early 30s.