Those are important ingredients when it comes to building a lasting relationship and laying a firm foundation for a successful marriage. It's an arrangement within which spouses have to learn how to cooperate, work together, and hammer out mutually satisfactory compromises.
But in a situation like yours it's still important to think things through on a deeper level. Because in the final analysis the challenge you're facing is bigger than a mere difference of "religious opinion." It's not just a question of your willingness to "tolerate" someone else's beliefs. And when worldviews collide, the results can be devastating for a marital relationship. They have to do this on an almost daily basis, and in response to a wide variety of practical problems. As an atheist, you assume that there is no higher authority. As far as you're concerned, it's just a question of "what works." But your Christian girlfriend has a very different perspective.
Jennifer's, Samantha's and John's concerns are common, because according to the U. Census Bureau, 19.3 million Americans get divorced each year, and many of them date and eventually remarry.
Perhaps you share their concerns, as you're also wondering how you can reenter the dating world after divorce — and do so according to God's standards. Divorce is the death of the dreams you had when you committed yourself "for better or for worse." As a Christian, you can't simply separate from your spouse one day and hit the dating field the next.
If you start dating prematurely, you could be hurting — rather than honoring — those you date.