The most common cause of broken relationships is a lack of trust. When trust is lost in a relationship it is hard to regain. Partners begin to lose intimacy and they begin to drift apart, nothing in the relationship is exciting to them.
Partners begin to find excitement in something else or someone else. Over time the relationship becomes a burden to both parties and this leads to the end of that relationship and both parties move on from there. Trust is an important element in a relationship. It is needed for a relationship to work.
The most common reason for breakup is lack of trust. Partners fail to trust their spouses, which leads to fights and arguments. Slowly, the intimate bond is shattered by stones of doubt, which infiltrate into the mind and damage the love for each other. Lack of trust can translate into possessiveness, jealousy or lack of dependability. It can take any number of forms, which slowly become intolerable.
The best way to avoid his is to actually sit down and figure out the cause. Is there actual evidence to the problem or is it something that you have made up in your mind. Giving each other time and space is one of the best ways that couples can avoid this problem.