Should a Married Person have a close friend of the opposite sex?

The Bible does not forbid close friendships between men and women. As Christians, however, there are some principles that we would be wise to heed. Married people especially need to be wary of friendships with members of the opposite sex because temptations are more likely to arise when there are marital problems. If a man's best friend is a woman who is not his wife, he is likely to share these problems with her, which can lead to an unhealthy emotional attachment.

Most married men (or women) who have affairs purposely go out to find a romantic interest outside of their marriage. So many people say, "I didn't mean for it to happen; it just happened." These things "just happen" when we put ourselves in situations that are difficult to control. When a man has a wife who is not necessarily very attentive to his needs, he could easily feel that he has fallen in love with another woman who does give him this attention he craves.