~first~ and ~second~, your numbers normally have virtually nothing in common. If you witnessed a social event, you would never see the 5 and the 9 hanging out talking and laughing. Their interests and approaches are so far apart they would have a tough time carrying on a conversation, much less enjoying it. 
They do not dislike each other; they just mix like oil and water. 
Although the numbers found in this area of the chart do not seem to be responsible for the attraction between you, there are other areas where you may fit well. The fact that you have a relationship (assuming you are not just in the initial stages of seeing how you feel about someone) indicates numbers and influences in other areas of the chart sustain your relationship. 

~second~ (the 5), the adventurous, dynamic, and freedom-loving spirit reflected in this part of your chart will sometimes be annoying and perceived as irresponsible by ~first~. ~first~, your idealism, sense of duty to humanity, and desire to "make a difference" in the world, might appear superficial to ~second~ (who can be skeptical). Although there is not much to be done about these differing outlooks, the relationship between a 5 and a 9 is far from doomed. Other aspects of your personalities are strongly connected and compatible, otherwise you would not have a relationship at all. Your challenge is to minimize the lack of compatibility in this aspect of the chart. 

For ~first~, it is important to recognize that idealism, self-righteousness, duty, and responsibility will only impress ~second~ if you do not take credit for your actions. ~second~ distrusts idealism but admires results. Without limiting yourself, you will need to accept that you are on your own when it comes to following your heart in these areas. Similarly, ~second~, in ~first~'s eyes you sometimes appear shallow or selfish; your energetic, adventurous need for experience without too much analysis is foreign to them. 

You will need to compromise and be diplomatic when it comes to these issues. You likely have room to explore and share in other areas of your life. Look for aspects in your chart that describe more compatible traits and focus on them.