18 + 4: Lunar birth day compatibility

A meeting of the conservative and the chameleon.
The Four seeks foundation, roots, and stability; traditions and 'how things are done' are important to them.
The Eighteen lives in the moment, changing masks depending on the environment.
At first, the Four is mesmerized by this flexibility, but very soon it begins to seem like lack of backbone.
You're sitting in the kitchen: the Four wants to discuss the budget for the year ahead and family plans, while the Eighteen is daydreaming or mirroring others' ideas without having their own.
This drives the grounded Four to grind their teeth in frustration.
The conflict always centers on one thing: the Four tries to 'ground' the partner, forcing them to define themselves, while the Eighteen perceives this as tediousness and pressure.
In intimate life, the Four may be too predictable and technical for the Eighteen, who needs play and intrigue rather than a schedule.
In business, everything is decent if the Four maintains structure and documentation while the Eighteen operates as the 'face' of the company.
However, it becomes challenging over time: one builds a house of stone, while the other constructs castles in the sand.
To avoid parting ways, the Four needs to stop trying to parent, and the Eighteen should take real responsibility for joint decisions at least once.