Based on the chart:Her sun and venus conjuncts your IC:: connection to the IC shows an affinity between people, they feel like your family and you have an easier time confiding to them.
Your moons square each other. It seems a bit wide but still. It's a square aspect so not that easy to work with but it still creates affinity between them.
Then your sun opposites her saturn
Your saturn conjuncts her mercury
Those takes another level into their meaning when we realize that saturn is your IC ruler and her DSC ruler (original ruler of aquarius)
(maybe you were a natural "partner" to her and she felt like a natural "confider" to you ??)