If she has Pluto conjunct Venus in Scorpio you will have trouble reading anything about her. I'd advise just asking her Scorpio Venus and Scorpio Pluto don't like when people assume anything about them. Also if she has a hades moon (moon in aspect to Pluto), she probably isn't afraid of you at all, or afraid of much of anything really. (I'm a hades moon with my moon in the eight house, and in the chart I use, Venus and Pluto are not conjunct, but are both in Scorpio)
Whoam1, please be aware of what kind of chart you're interpreting. This isn't someone's birth chart. The OP is talking about composite and synastry charts. Those are relationship charts, involving the natal charts of two people.
A synastry chart is two charts put together, same chart wheel design as is used for birth charts, but with two layers, or tracks, to the wheel. One chart appears on the inside, the other on the outside. You then look at aspects between the charts.
Since 8HMoon didn't post the actual charts and didn't include certain crucial details in his description, it's impossible to tell what exactly he means when he's describing these aspects. It sounds like one person's Saturn is square the other's Venus and Mercury, but he didn't say which person's Saturn and which person's Venus and Mercury, and he didn't say what signs they're in.
The Venus/Pluto conjunction he mentioned is in the composite chart. That kind of chart looks like a single birth chart, but it's actually an average, so to speak, of both people's birth charts. Most synastry charts are drawn by the midpoint method. That means finding the midpoint between their suns, their moons, and each of their planets, and putting the composite sun, moon, Venus, etc. at the midpoint.
Synastry charts are used to explore the relationship dynamics between two people. Composite charts paint a picture of what the relationship itself creates. Neither is used to explain the personalities or motivations of the people involved, except that in synastry charts, you can see each individual's birth chart and interpret it accordingly.