While there are many different types of problems that can plague a relationship, these are some of the more common issues that many modern couples deal with at one point or another in their relationship, especially if they have been together for a long time. Separation – Often a step before divorce or a break-up, a separation brings with it many issues that need to be dealt with by everyone involved.   Divorce / Break-up – Learning to move on after a bad break-up or divorce can be difficult for many people, leading to other problems in their life.  Infidelity – When a husband or wife cheats on their spouse, it can cause conflict for many years to come. Learning to deal with issues of infidelity is helpful for many.  Betrayal – While infidelity is a form of betrayal, there are other times when it becomes difficult to trust a person after they betrayed you.  Jealousy – A little bit of jealousy may be healthy for a relationship, but too much can tear it apart. Knowing how to deal with jealous feelings or a jealous partner is important.  Communication Problems – Many who have been married for a long time say communication is one of the cornerstones of a happy marriage. Sometimes, couples have trouble communicating with each other for various reasons.  Power Struggles – While the man has traditionally played the dominant role in most relationships, the times are changing. Many couples face “power struggles” in which both partners try to gain and maintain dominance in the relationship instead of working together.  Sexual Issues – From erectile dysfunction to dealing with the effects of menopause, there are many sexual issues that affect both men and women that can have a big effect on a relationship.