Yeah, as Giga's spot on about this. If you think Bridezilla is bad, wait until after the wedding when you're legally tied to her. Relationships really never get better than when you're dating. That's because you don't have to actually deal with all of their problems.
It sounds more like you don't have problems to work on, she does, and you should put your foot down about her behavior. Because if you don't, you will die a little bit inside every day until you divorce her pathetic ass. Every compromise, every insult, every bit of your life that she controls will kill you just a little more emotionally.
One of the biggest pieces of advice I received when I got married was, "Pick your fights. Ask yourself if this is really worth arguing over." And, you know, the little things aren't worth arguing for until there are enough little things to add up to a great big pile. And every little thing became another push further past my boundaries. Saying "NO" was grounds for a massive argument.
I felt as if every time I caved to a request that I was selling a piece of my soul. There was no compromise, because if it wasn't resolved to her perfect satisfaction, it wasn't resolved. And, you'll drown.
Don't do that to yourself. Respect yourself more than that.
"Well, then," the Cat went on, "you see a dog growls when it's angry, and wags its tail when it's pleased. Now I growl when I'm pleased, and wag my tail when I'm angry. Therefore I'm mad."