Sun - Moon synastry, how will this interaction differ between these two people?

So you have two situations in synastry, we will note that it involves Person A (female).

Person A (female) and Person B (male) have the following sun and moon aspects:

Person A's moon conjuncts Person B's sun.

Person B's moon trines Person A's sun.

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Then you have Person A (female) and Person C (male) who have the following sun and moon aspects:

Person B's moon squares Person A's sun.

I met this aspect in synastry, but very rare. I met happy couples without this aspect. I do not really understand how this aspect feels and works.