Congratulations!

I'll answer your questions seriously, and let the others yank your chain.

Communication. This is huge. If you don't communicate with your partner, little things snowball into huge events very quickly. When in doubt as to whether you should say something or not, err on the side of being open and talk with her.

Respect. Courtship doesn't end once the ceremony is over. Treat each other with respect, and see how easy it is to maintain your relationship.

You must like each other as well as love each other.

I'm so happy for you. What a wonderful journey you have ahead of you!