Background
Your upbringing and that of your spouse will define your relationship. If you were from a wealthy background but he was from a middle-class family, you might not be as prudent and frugal as he is. He might think you can manage funds and you might see him as stingy. Neither of you is right or wrong: your conflict is really a clash between your value systems and your backgrounds. You still love this guy, but you detest his way of thinking regarding the matter.
Compatibility
Most couples think they are compatible because they both like jazz or travelling, so they get engaged, and then get married. Only a few months after the extravagant wedding, they can’t seem to get along. Your marriage will go through different phases and stages, which will rock the boat of your commitment to each other. Only those who have been married for so long and are still together can say confidently that they are compatible.
Companionship
Our society primarily expects couples intending to get married to have children. Even at the wedding ceremonies, lots of prayers are said about having children within the next year and so much more. This puts a lot of pressure on ladies, many of whom may be clueless about hidden infertility issues. Marriage is primarily for companionship: someone to share your time, successes and sorrows with. If you don’t enjoy each other’s company, you will soon become roommates and not soulmates.