It is true what they say that there are no perfect things in our lives. Even in marriage nowadays can be classified in this category of no perfect things. Right now, it is very common for couples to live-in together because so they would know the each other much better. This happens because of the rapid growing of broken marriages, abusive relationships and many more. There are things that ruin a relationship but I'll just only give the major things.
The Three things that can ruin one's relationship:
Trouble in finance is no. 1 in any list you see. They get to be angry if one's needs or the family's need doesn't meet. Sometimes, you will have unforeseen expenses which some of us are not ready about it. Like for example, emergency for any family member or calamity is also one reason. One also a reason that falls into the money category is financial insecurity. Money should not be an issue for the two of you. You should talked it out on what you need you to do calmly nothing will solved by arguing.
Insensitivity is very common in every relationship especially when you are married. When you get home you ignore each other because of exhaustion and wanted just to relax but sometimes your partner would want you to be tender (If you are living in together).
When you are ignored and your partner is too work up on something to notice, you will get angry and thus the argument would start. Both of you need to be sensitive in your partner's need and wants. Even if it just a little thing sometimes when you go home you want a loving welcome coming from your partner.
3. Word War
Never ever start a word war. For those who doesn't know what a word war is. It is exchanging of words like blaming their faults or how mediocre your partner is. Don't criticize your partner for their imperfections or their flaws and ever bring out the past especially when your partner is recuperating. Words are hard to take back, once you blurred it out so just take a deep breathe choose your words carefully don't let your emotions take the best of you.
If an argument is about to start, just be calm and pray to God for self control for both of you and a clear understanding of each other. Let God be the center of your lives and don't forget it.