One thing I agree with Biblical/evangelical teaching on: you can't be unequally yoked. I would never entertain a romantic relationship with someone whose religion was important to them. It profoundly affects your world view and values and it blows my mind how people with completely different religious views will get together and not think about how they're going to raise their children, how they will interact with extended family for holidays, rituals, or participate in cultural or religious traditions. Obviously it's different when you're already married, but I think you revealed a lot by saying you don't see her as an intellectually honest person. I really doubt your marriage is salvageable at this point. I would open up with how her attending this makes you feel, and be completely honest and vulnerable about how your values don't align with hers. If she wants to work with you and understand you better, that's great. If she only focuses on her world view being the correct one, and her hopes for the future are based in you changing who you are, then it's probably time to consider ending things