The easy charm you were reading about is real. Inside one chart it goes by another name.
What it looks like in a life
In a single chart the version you have is either Sun conjunct Venus, which fuses your identity with what you love, or the wide whole-sign sextile, which leaves a little distance between them. Between two charts it is a different matter. One person's Sun trine the other's Venus is one of the smoothest contacts in synastry: quick liking, low friction, almost no effort required to enjoy each other.
The gift
Knowing the difference between an aspect inside one chart and a contact between two changes how you read everything. Most of what people call chemistry lives in the second kind.
The friction
Trines go lazy. A relationship built only on the easy contacts stays pleasant and rarely goes deep, because nothing in it asks either person to grow.
The esoteric layer
The tradition treats trines as capital rather than process: possibility, not development. Between two people that means goodwill neither of you earned and both of you still have to spend well.
Where this goes
Your own chart holds the conjunction or the sextile. A synastry reading is where that trine gets read, and it shows what comes easily between you.
Related
See it in your own chart
Cast your chart free and read this placement next to everything else you carry.