Composite readings

Composite Moon and Mercury

A composite chart is built from the midpoints between two people's charts, so it is one chart for the pair rather than a chart for either person. These readings say what a placement in it stands for in a pair's shared chart.

Together

Composite Moon conjunct with Mercury
Feeling and thought sit close together for the pair, so what it senses tends to find words quickly and what it says tends to carry some emotion with it.
Composite Moon in an easy aspect with Mercury
The pair's feelings and its reasoning move along together, so what it feels and what it thinks tend to agree and each is easy to follow in the other.
Composite Moon in a hard aspect with Mercury
The pair's feelings and its reasoning keep different rhythms, so a mood can arrive before the words for it, and a clear line of thought can sit apart from how it feels.

None of this is a verdict. A single placement never describes a whole relationship, and astrology is a tradition of interpretation rather than a body of established fact.