Hardly. It's rather presumptuous of you to pretend to know why I would refuse to answer your questions.
If you must know, I've learned enough about human nature to see that people who take a morally indefensible stand usually zero in on a very small part of an argument. They then proceed to badger people into answering questions that will merely make them feel better about their own position. Whether I have a daughter, whether my wife and I had premarital sex, what I think my hypothetical daughter might do in a given situation - it's all nunya bidness.
I will leave you with this thought - stop obsessing about the quality of the sex, and start obsessing with how you can best serve your spouse. Be a helpmeet. Be a shoulder to cry on. Be a rock when you need to be. Be a best friend. Most of all, make a commitment to yourself and your spouse-to-be that, whatever comes, you will be by her side. Promise her and yourself that you will not turn your back on her. Believe in your heart of hearts that the two of you need each other. Without her you cannot be complete.
Then, and only then, will the sex get better and better.
If you can't honestly say that you will promise to do the aforementioned things, then don't marry this girl. She deserves better. We all do.