Do not "saw"
The third week you warn that dripping faucet in the bathroom, but the repair is still not visible? Instead of constantly "nag" partner, prefer to complain to a friend over a Cup of coffee. It won't hurt, but if you will constantly push, contaminate your relationships negative energy.
Do not cry the Blues
Complain to anyone who will listen how hard you and your partner live? If this is seriously get a divorce, if not, then don't complain. Constant complaints and whining do not constitute constructive solutions to your potential problems. If you and your partner have any problems, solve them with him, not with their friends in a cafe.
Do not try to control the purchase of each other
"Lord, why do you need another new cell phone?" The next time you want to ask such a question, bite your tongue. If you don't have a huge problem with funding the basic necessities of life (plus, their expenses partner pays for himself), let each other a little joy. Even if you are married, you don't have each other to explain why I decided to give myself a little share of happiness. 
Do not cut yourself off
Unless you're both so busy with their work, kids or other interests that they forget to take time out and use it for yourself? When was the last time you had a quiet conversation? When was the last time you had sex? If you do not allocate time for joint activity, the distance between you will grow, and there is a danger that you will not be able to find the way back. Don't underestimate the power of communication and connection between you. The time devoted to the relationship will pay off handsomely.