When I first joined Chaz, I was shocked and surprised to see the extent people on this forum will go for their dogs, but then I realized this is a dog lovers community, consited of lots of people who work with dogs as a profession (dog breeders, groomers, trainers, etc..),so you are a distinct group who are very different from the general puplic. What I mean is not everyone knows as much about dogs as you guys do, not everyone is an expert dog trainer, not everyone think of the dogs as their kids, and not everyone put their dogs in the highest priority.
Now, please don't get me wrong (because I love my dogs as much as you guys do, and consider them my furkids as well). I understand other people's views, though, and do not get upset when they don't treat their dogs the way I treat mine. As long as they love their dogs, provide all the essential care for them, they are good owners in my book. As far as I know I'm the only one in my circle of families & friends who feed the dogs the most premium (expensive) food out there, send them to training classes, shower them with treats & toys, take them out, celebrate their birthdays.. All these are considered excess and not necessary by my friends & relatives.
I'm always a little bit appalled with threads titled something like "How come people are so stupid", or "What an idiot", etc.. and then the person goes on to descibe an innocent person who obviously doesn't know much about dogs, or doesn't share their views about how the dogs should be treated, or their method of training, or the worse of all, when someone mis-identifies their dogs. I myself don't know a lot of dog breeds, and get them wrong all the time, but that doesn't mean I'm stupid, or ignorant, etc.. It just means I don't know a lot about dogs.
So, back to the OP question.. If I were to talk to anyone I know about rehoming my dogs to someone who would treat them the way I do, they would think it's impossible, and probably laugh at me, too. So, while it's entirely possible to find someone who does (and you have all the rights in the world to wait until you find one) - it's not so difficult for me to understand why your boyfriend thought that it was impossible.