When one's marriage does not work out perfectly, a person might think he will find greater happiness elsewhere, but the truth is that probably no one else would like him either given the way he acts. He has to realize that if he would only behave as a loving and caring person towards his wife, this would insure that there would be love and unity between them. Your wife is just the woman you need. You could not have chosen better if you would have lived another thousand years and seen as million different women. G-d knows exactly who is the best choice in the world for you, and that is the spouse He has given you.
People look for easy solutions.
It is much easier to blame your spouse for problems which arise, or to seek a divorce, then to work on your Midos and become a loving and caring partner and spouse. To improve your Midos is hard work, but is necessary to ring about a successful marriage. Your spouse would not be able to quarrel with you if you acted humbly and didn't answer back. if you would just work on the mida of Chesed, your spouse would love you so much more. If you would abolish if you would abolish the mida of anger from yourself, then you would always be calm and likable. The more you improve your Midos, the more your marriage is likely to succeed.