While it's true that people cheat for a variety of reasons, nothing can happen without opportunity. In fact, most individuals probably don't realize that they are capable of cheating until circumstances are just right and fate lends a helping hand.

Yes, without opportunity, not much is going to happen.

However, that's not to say that there is no chance your spouse will ever cheat on you - there could be a very good chance. A lot depends on how solid your relationship is and the character of the person in question.

Also, consider that if opportunity is truly the last ingredient needed to start an affair, is your spouse only faithful because there has been no opportunity? Think about that for a minute. If conditions were right, would they go for it? Now that's food for thought.

Let's face it, the only person that truly knows the answer to that question is your spouse - and they're not likely to admit it.

Obviously, there is little you can do to prevent fate. If an opportunity presents itself, you have got to rely on the strength of your relationship and the ethics of your spouse. Otherwise, you could end up looking jealous, petty, and insecure - especially if that person has given you no reason to mistrust them.

When it comes to fate, you get the cards you're dealt. But, that's not to say that you can't have some influence on the outcome. Here's five ways to stack the odds in your favor:

Make sure you choose the right person to begin with. Sounds obvious, but it's important to know if they already have it in them to cheat. Find out as much as you can before making a commitment.

Don't be naïve. It's one thing to trust a person, but you don't want to ignore reality. Be aware of what's going on and trust your instincts. Look for the early signs. Affairs don't happen overnight. Look for changes in your spouse and their daily routine.

Concentrate on your relationship. Make time for each other and do things as a couple. If you have a healthy relationship and sex life, cheating will likely never be an issue.

Be open and honest. Don't give them a reason to mistrust you, and in turn, let them know that you trust them.

Don't be openly jealous and insecure (though you may feel that way). This is sure to drive them into the arms of another person.