This is great! What an exciting time for you! I loved this time of my life when I first woke up to my Catholic faith. It was such a Graced filled and blessed time. Don’t worry so much about your fiance, but just give yourself to your search into Catholicism.
The most important thing for you to do is have little conversations with God asking him to reveal to you answers to your questions.
I have some recommendations for you if you are a reader:
Mother Angelica’s Questions not Promises
I tripped over this one in the library one day when I wasn’t a practicing Catholic. It got me started on my road back into the Church.
Rome Sweet Home by the Hahns. This helped me a lot to understand a lot of our doctrines as related to the Bible. It was helpful, too, because it is about a couple who are united in their faith for a number of years.
And, this is a nice book for a fundamentalist Christian to understand Catholicism better as well as for a Catholic to see where a fundamentalist is coming from.
And, these books on Saints really drew me to a Catholic understanding of prayer, scripture, virtue and love of God.
If you aren’t a big reader, there are lots of audio that is helpful. All of the above books are on audio, too!
Here’s some links on Audio:
Mixed marriages are more difficult in a lot of ways. I am all ready telling my kids not to date non Catholics (when they are ready to date, of course). We’ve had some difficult years because of our differences in Faith. And, I’ve somewhat frightened by the statistics of kids who don’t practice the Faith–less than 20% of kids grow up to practice when their dads aren’t Catholic.
But, just because it’s harder doesn’t mean it isn’t doable! Even with our struggles, I’d still choose the same nonCatholic spouse I have today. God bless you.