Wiffle,
Which IQ society did/do you belong to? I'm a MENSA member myself.
I completely agree with you that your view of how other people perceive you is not "in your head" as your husband thinks. My experience has been the same as yours--that is, people like me once they get to know me, but because I am fat, they may not bother to try to get to know me.
Recently I reached the point in my weight loss where I apparently am not "invisible" to people anymore. And no, it is not because I am acting more confident myself due to the weightloss. I'm already one of the most self-confident (some would say insufferably so

) women you'd ever meet. I was trying to explain this concept of fat people being invisible to my counselor (she has never counseled an overweight person before), and she was so intrigued and distressed by it that she started trying to figure out if it was something she did in her own life, LOL.
With scientific evidence mounting daily that demonstrates that obesity is NOT just due to a lack of willpower, you have to wonder what excuse they'll come up with next to scorn fat people. It's almost the only remaining form of discrimination against a particular group that is still condoned by society.