There are red flags in every relationship. Some are common while others are very defined and specific to a single relationship. Regardless, if you can understand some of the most common relationship issues as well as how to avoid them you can hopefully anticipate a healthier, stronger relationship:
There is nothing that destroys a relationship quicker than an affair. Unfortunately, infidelity continues to be a major issue, and often times the relationship is not salvageable after the truth is acknowledged.