Relationships require a number of skills, including being able to understand yourself, understand your partner, fight in a healthy and productive manner, problem solve, and negotiate differences.
Everyone who is in a serious relationship experiences difficulties, but some couples reach the point that one or both partners are disappointed and upset about their relationship and may even consider leaving their partner. At this point a couple can feel overwhelmed, even though therapists suggest therapy before relationship difficulties reach crisis levels, addressing the issue is better than no action at all.1