If either person isn't 100% committed to scale every mountain that comes before you to make your relationship work then you aren't ready to enter into it. That's part of the reason the divorce rate is so high. People are entering into the commitment they're making without having the strength of character, fortitude, and resolve to keep the promises they're making to each other and also to God. God cares VERY MUCH that we keep our marital promises -He enters into the marriage with you whenever you marry so your promises aren't only to each other but also to Him.