Finding balance in a relationship is always important, and the partners will function better if they take the time to do this. Everyone has strengths and weaknesses, and each person must compensate for their partner. This is a normal part of the give and take each person enjoys when they are fully invested in a real relationship. Unfortunately, some people choose the way they perceive as easiest, and they often find out their relationship was unequal. They are left with nothing but regrets and bad memories when this occurs.
It takes knowledge and effort to create an equal relationship between two people. Those who do this will live a nicer life, and their relationship will have a better chance of long term success. Those who fail to plan for the future will find they are often left with nothing more than regretful memories they may regret from a relationship that could have been better.