Okay I've read and understood the entire post. Phew!
And was there some black magic done on you that's preventing you from telling us the details?
Regardless, of whether it's black magic, or cheating, or whatever, fact is he's not consummating the marriage and you need a divorce, and in Islam you have that right, especially if your her husband is denying you.
So what's stopping you? you need to marry someone else, unless you want to keep living with you roommate of a husband childless for life.
And normally I don't recommend divorce either. I realize the social implications of divorce, but how different will your life be married, without any children, etc? Also the social image your putting on with the 'perfect couple' thing is only hurting you. Maybe you should tell more people about it, so that when your divorced, people will understand what's going on so it's not like a shock to everyone.