As a rule, relationships fare better when the core numbers found in the same location of a chart are not the same. The 6 is an exception to this rule, largely because it is considered the most harmonious, loving, and committed of all numbers.

~first~ and ~second~, you both strongly commit to a romantic relationship and there is nothing you want more than to make your partner happy. Your dedication makes you willing to sacrifice many of your own needs and desires for those of your partner, children, family and friends, your need to give to others will likely involve healing, teaching, counseling, or the arts, either through your career or on your own time. 

Keep in mind that other numbers (in other areas of the chart) also play important roles in your relationship. However, even incompatible influences will be diluted, at least in part, by the harmonious aspects in this part of your chart.

Although well meaning, the giving nature of the 6 can become intrusive, even suffocating, which could cause the relationship to shift from committed to co-dependent. To avoid this, it will be important that you maintain your individuality and your ability to find happiness and contentment without relying solely on your partner (or anyone else).

Jealousy is another potential issue against which you should guard. Should your protective temperaments become excessive, either of you could become jealous or distrustful of the other. And if you find yourself becoming suspicious of your partner with no obvious cause, step back and look at the situation as objectively as possible. 

~first~ and ~second~, the 6 found in this part of your chart is a powerful asset to the relationship. It is a number that brings harmony and love to all other numbers. Focus on your loving, loyal, creative, and giving traits and you should be able to maintain a beautiful romance, with love to spare for your family, friends, and community. 