Relationship between type 5 and type 9

The observer and the peacemaker

Sherlock Holmes (Sherlock)
Jane Bennet (Pride and Prejudice)

Attraction

The 5 is attracted by the tolerance, the generosity, the acceptance, the modesty, the humility, the sensuality and the goodness of 9.
The 9 is attracted by the gentleness, calm, wisdom, insight, ingenuity and reliability of 5.
Both are open minded, thoughtful, patient, tolerant enough and know how to appreciate the simplicity of life.
The touching skill of 9 to merge smoothly, helps the 5, who feels empty inside.
They both value stability and can form a comforting and harmonious relationship.

Points where to be careful

Both love autonomy, and tranquility, and can give each other a lot of personal space. This can create a concern in the sense that neither is good at initiating things in the relationship.
The 9 tends to idealize his partner, and want to merge with him emotionally, while the 5 can have trouble with too much emotional proximity, which can make him run away, frustrate the 9, and change the turn of the relationship.