Well, if this is a paid attorney, there is nothing wrong with firing him and finding a better high-priced employee. That's right. The attorney is your employee, and if you don't like him, get rid of him.
Before you do, however, find another attorney. If the trial is only two weeks away, you want to make sure that you will be able to get a continuance, because it will take the new attorney time to get up to speed.
If your current attorney has been practicing criminal defense law for 32 years, chances are good that he knows what he's talking about, even if you don't like some of the answers.
There's also nothing wrong with you doing some of the footwork, because that saves money you'd have to pay him.
If your attorney tells you that certain types of evidence or witnesses can or can't be used, ask him why. He's probably right, but you and your fiancee need to understand why and why not he is making decisions or giving advice he does.
Please keep in mind that the alleged victim is an alleged victim of rape. If this case is heard by a jury, a jury is not going to take too kindly to a mean, nasty, aggressive attorney getting in her face. He's going to need to paint her as a liar without the jury turning against him or your fiance. It's quite a delicate balancing act.
One thing you can do, if you want to take the time, is contact a few other criminal defense attorneys in your area just for a one-hour consultation, to see if maybe one of them would take a different approach.
The "problem" with law is there are often no right or wrong answers, and the truth is often what a jury decides it is.
Am I helping? Is there anything else we should discuss? I'll be waiting.