As a dual geek couple (is that the proper term?) completing our 11th year of marriage, I have been the guy exactly described in the parent post: Try to be a good partner, but unknowingly lie to yourself about your true resentments. It's easy to do. Don't be that guy because it really does bite hard when you wake up years or decades later. It's funny how, you can have the best communication in the world between SOs, but communicating with yourself is rarely considered (and far more devastating). Too many people enter or run marriage with an over compromising "yes dear" mentality. True, marriage does involved some compromises, but it should happen with moderation.
Oh, and I'm not sure how old you are, but my hope is at the least you are in your mid to late twenties. IMHO marriage should not be permitted to those under 25.