Relationships exist as waves - we need to learn how to ride them. Some waves last for hours, some for months or even years. The key to success is to understand that few of those waves have anything to do with the quality of the relationship.

People lose jobs, family membe...

Most successful couples don't resolve all their problems. It comes back to respecting your partner, who will have different values and perspectives on some things. The key here is to abide by the difference, love them despite it, and when things get a little rough, forgive them for it.

Relationships, like muscles, cannot get stronger without stress and challenge. You will have to fight at times and hash things out. However, it is essential to know how to fight.

• Never criticize your partner's character or belittle them. "You're so stupid" vs "that thing you did ...

If there is a bedrock of respect for each individual's interests and values underpinning the relationship, each individual is encouraged to foster their own growth and development. Each individual will evolve in different and unexpected ways.

When you commit to someone, yo...

A relationship is not 50/50. We all have things we like to do and hate to do. We all have things we are good at and not so good at. One partner may work harder outside the home, and the other may have a more relaxed position.

Be practical in figuring out the division of labour in...

It is not your partner's responsibility to make you happy. Each one should figure out what makes them happy as an individual, then you both bring that to the relationship.

Every relationship requires sacrifices at times, but problems arise when your happiness is contingent...

Don't ever stop doing the little things, such as saying "I love you"; holding hands during a movie; doing small favours here and there; helping with some household chores.

The little things add up. Don't forget them.

People who have been through divorces almost always say communication is the most important thing. But the thing people with happy marriages consider the most important is a deep respect for their partner as well as respect for themselves.

• Respe...

If you love your partner enough, you will let them be who they are.

Have your own interests, your own friends, your own support network, and your own hobbies, Overlap where you can, but different interests should give you a lot to talk about and help expand your horizons a...

If something bothers you in the relationship, you must be willing to say it out loud to your partner. Doing so builds trust, and trust creates intimacy. If you cannot trust, you cannot be trusted.

• Share those insecure things you hate sharing with people. You and ...