CONGRADULATIONS!!!!
I've been a long time lurker here and usually there is a trend of 'pushing' against the naive selfish brides that first come on to this board and give them the 'hard truth' I think it colors/influences all if not most of the responces to new posters here. I don't agree with it because, you know what, every new bride is going to be niave. Every person is going to be selfish to a degree and we can either converse with them in understanding or alienate them. Either way, they are still probably going to get married regardless of what we say :D.
Guess what!
It won't hurt your family to be a little gracious and happy for you!!!! It doesn't take a genius for even the most uninterested in wedding things to figure out that they can say 'That's great!' It's not politically incorrect, selfish or unnatural for you to be hurt by their great disinterest!
It's freakin' normal for you to be confused by this.
What I would do is be frankly honest with your family. One by one you can go to them and ask "Why?" let them know you were hurt by their inattention and don't let them blow you off. Obviously, you aren't going to attack them, but you can hold an honest and forthright discussion with them about this.
Best wishes and prayers!
**********I don't know what I want for my wedding, I just know I want him for my marriage!************